If you're looking for part 2, click the link th-cam.com/video/XLTb0V1BGNw/w-d-xo.html Notes: Yeah we missed the typo in the title, there's no spell check there and everyone missed it in post production, there's usually one or two in any episode though of course the title itself is a trifle embarrassing, it's probably Karma punishing me for the slightly clickbait title. Also sorry about the delay on the audio-only parts, had to mix them after it went live, took a few minutes.
Isaac Arthur Thank you for another fascinating episode! I watch this with my 12-year old daughter and asked her at the end what she thought. She said the episode was enjoyable and you explained the ideas really well 👍🏻
There is yet another theory that this has already happened. There is yet a third theory which states that the previous two theories were made up over lunch by a wily editor for the Hitchhiker’s Guide to the Galaxy in order to boost sales
Romano Coombs That's funny, I should have got that. Been a fan of that show since the beginning. Actually been a fan of Adult Swim since way back in the Sea Lab and Brak days.Was really surprised how big R&M have become. I think it's one of the best but at that time slot. Just surprised as many people knew about it. There was a show Drinky Crow on AS maybe 10 yrs ago. If you like R&M you'd appreciate it. Sorry, starting to babble...
+Isaac Arthur i actually owe you life. I've been here since almost a beginning and i was a 110 kg at that time. Then i fell in love in 2 things - stationary cycling and your videos. Ever since i spent hundreds of hours spinning and watching to your videos over and over again hundred of times. And here i am now over 30kgs less still spinning like crazy watching to your crazy stuff. THANK. YOU.
Congratulations! I've had to lose weight before, and could probably stand to do so again, I'm terribly sedentary post-army, and its certainly much easier to do those long light cardio sessions with something to listen to
Isaac, your videos are like conversations; that's what makes them wonderful as it allows the audience to deduce their own thoughts. Your collaborator lectures. This I believe is the major distinction between good and boring teachers.
It sounds like an Invader Zim movie sequel thing (fantasy)... Invader Zim! And The Compendium of DOOM! I can even see the cover art. Zim standing right in the middle with a gun and the title "Invader Zim" above him. And below is lil' Grr, and in a chat bubble, "And The Compendium of DOOM!"
jet flaque and Kye Huelin these videos are free? Well, almost - Issac and Paul both have patrons and donors so the videos and the tremendous effort going into them are paid for - we're benefiting from a variation on philanthropy. And that's way cool. (hint - they need more patrons)
Agreed, Im not in employment right now, however, once I am again, I will certainly be supporting my favourite channels. who are: Isaac Arthur, Fraser Cain, Joe Scott, Potholer54, Thunderfoot and Sargon of Akaad.
Remember that story. Tec support turns up to set up a computer at some holy order, works out the true name of god. "And In the dark night sky the stars started winking out one by one."
@erik2000 Epigraph to "The Restaurant at the End of the Universe": “There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened.”
Nothing like the feeling of thinking big thoughts. I think we have to be prepared for the possibility, that there is something major that we do not know about the Universe, and the even worse spectre, that we may never know. Love the title.
:) I'm pretty sure I'll eventually either do a book or a collection of essays and would of course do an audiobook version for them, I was tempted to grab one of my own favorite narrators like John Lee for it, but I might do them myself, or do two versions.
New subscriber here. This actually got me kind of excited when I saw the new episode pop up. Sometimes anticipation and fun are a little hard for me to experience, so...thanks. It's appreciated. Listening to SCIENCE!!...even science that gets over my head at times is relieving in a manner I can't really articulate, so, again, thanks.
I almost always fall asleep while watching your videos, which is good because I have a really hard time getting to sleep most nights. I do rewatch the ones I fall asleep during so that I can pay attention to what I missed because it's amazing content, but I'm really thankful that your voice is so relaxing I also find that when I do fall asleep during a video I don't have nightmares. I'm just glad this channel exists lol
I'm glad to hear that, I'm an insomniac myself and always need an audiobook and fan blowing to get to bed. You might find the audio-only versions easier for sleeping to, specifically the narration-only ones minus the music, I do tend to like crashing loud intros and outros.
I'm so glad you two made the points you made early in this video. Many abusive forces today relentlessly try to force us into Manichaean views in disputes of every nature. We need people of your standing to be able to think in a more expanded way than that. Thank you both so much.
Yes there's a lot of truth to that, a dualism consisting of 'smart, new, right' vs 'dumb, old, wrong' that hinges on the latter even being outright evil that to be honest is terribly unscientific and irrational even while often lauding both as the only approach to understanding.
I find it frequently also that new things are castigated as dumb and wrong or outright evil, based upon traditionalist views that are concocted from wishfully inaccurate conceptions of past conditions. We should allow our ancestors to be seen in the full context of their times and development, and allow our fellow denizens of this time the same.
2:36 "And while you can see water evaporate and rise into clouds, you can also see rocks tumble down the mountain, but never float back up." Well, is you wait long enough, you will see all those rocks being pushed back up into new mountains by tectonic forces, as fossils of sea creatures on top of the Himalayas will demonstrate.
This title is absolutely perfect for an Invader Zim movie, sequel thing (fantasy)... Invader Zim - And The Compendium of DOOM! I can even see the cover art. Zim right in the middle, squinting his right eye, hands menacingly clawing over the earth, and the title "Invader Zim" above him. And below is lil' Grr, and in a chat bubble, "And The Compendium of DOOM!"
I am truly amazed at how lost I could be while listening to this, and yet somehow walk away feeling like I know a little more than when I walked in. Humanity truly has a interesting way of processing knowledge that it has trouble comprehending.
Great episode as always! But I just found one tiny flaw in the animation, where you talk about stars growing colder but the animation shows the star grow from yellow to blue which shows them growing hotter. It may fool some, but probably not those subbed to this channel.
ebigunso Generally people associate the color blue with coldness. So, adding a blue hue to a fiery red star gets the message of cooling across. It’s not a mistake if it’s deliberately done.
It might not be a mistake, but I like how this channel is true to the physics so even in that case I'd still give an objection to how it's presented. It's far better to show it go dimmer and thus actually colder.
I made the same comment in part 2 but I'll repeat it here because I feel like it. I find myself very skeptical of "scientific predictions" concerning the end of the universe for three reasons which are rarely addressed in such discussions. To begin with our scientific understanding of the universe is without doubt incomplete. Not only do we not know much about dark matter and dark energy, we still don't have a theory of quantum gravity. Given these and other unsolved mysteries of the universe, it is arrogant and premature to say that we can know how and if the the universe will end, especially given the impact scientific discoveries have had in the past in regards to this issue. The second problem is that even if we had a sufficient understanding of all the natural phenomena we have encountered thus far, we would still only have knowledge of our universe as it manifests itself over timescales of billions of years early in its existence. Considering the fact that we seem to be dealing with timescales of trillions or quadrillions of years and a much more mature universe when we speak of the end of the universe, it seems questionable whether we could know (not to speak of whether we in fact do know) if and how the universe will end. Finally such predictions seem to ignore the impact intelligent agents and civilizations could have on the future of the universe. While it is often rightfully pointed out of insignificant we are in relation to the rest of the universe, this observation doesn't necessarily apply in the far future, billions or perhaps trillions of years in the future. As the saying goes: sufficiently advanced technology is indistinguishable from magic. All this makes me have strong doubts of claims that the universe will end and that it will happen in this or that way.
why you think such considerations should preclude anyone from making scientific predictions? With this attitude, no progress in understanding is possible as predictions is not simply a whim, but a vital part of building better theories. You make prediction, check it vs reality, correct your theory and make a new prediction, check it again, etc. Granted, the end of the universe is not particularly verifiable thing, still you can build some models with the knowledge available and check if they add up, and add new knowledge to the picture as you gain it.
@Dmytro Lysak I don't have a problem with making scientific predictions, even when the uncertainty is as high as it is in this case. I would in fact say that the considerations I bring up should do the opposite of precluding scientific predictions, they should preclude unscientific predictions. If one makes a prediction based on a description of reality which one knows is incomplete and overly simplified, then unless one has reason to think that the predictions is accurate, the prediction is not scientific. For example, if I were to predict that the feather I am holding in my hand will not fall to the ground if I drop it because birds fly, I hardly think that would be counted as a scientific prediction.
your example seems to me not related to the issue in question at all - it is in fact an example of flawed logic or "magic thinking", not insufficient information. Anyway, when some hypothesis is conceived, information on it is rarely complete or accurate. In fact, it never is. If you manage to create a logical model based on available facts and make predictions based on it - it is science, even if the hypothesis created this way is totally wrong. As an example, phlogiston theory was wrong, but still scientific. Argument that we should not make assumptions and predictions if data is insufficient is against the very spirit of human curiosity, and, ultimately, of science. In fact, the more logically sound (and complying with available data) crazy theories you create, the better - these ideas, even if wrong, can be used to spark understanding later. You can cross them out when you find new facts against them (as in fact the video tells happened) or develop them. As to the argument that we do not take into account the factor of intelligent beings in the universe is basically saying we should not study natural ecosystems because humans will rebuid them into cities or farms, so we should study cities and farms instead. Quite absurd, as we need understanding of how "pure" ecosystems work before we study human influence. I do not see why the basic logic of it is different on cosmic scale.
"your example seems to me not related to the issue in question at all - it is in fact an example of flawed logic or "magic thinking", not insufficient information." It wasn't my intention to make the case that my example is analogous to the issue in question. I was merely trying to illustrate the point that not all predictions are scientific. "Anyway, when some hypothesis is conceived, information on it is rarely complete or accurate. In fact, it never is. If you manage to create a logical model based on available facts and make predictions based on it - it is science, even if the hypothesis created this way is totally wrong." I didn't say, as far as I know, that a hypothesis has to be composed of, or based on, complete or accurate information in order to be scientific. Instead I would say that extrapolation from current understanding doesn't always result in scientific predictions. A good example is how we can predict the weather in the short term by extrapolating from our current understanding but not in the long term. Predicting the end of the universe by extrapolating from our current understanding is about as scientific as a meteorological prediction of the weather in France a thousand years from now. "Argument that we should not make assumptions and predictions if data is insufficient is against the very spirit of human curiosity, and, ultimately, of science. In fact, the more logically sound (and complying with available data) crazy theories you create, the better - these ideas, even if wrong, can be used to spark understanding later. You can cross them out when you find new facts against them (as in fact the video tells happened) or develop them." The issue is not whether we should make assumption and predictions, but rather how seriously we should treat them. Under some conditions, making assumptions or predictions simply is a waste of time. Making crazy theories is fine but predicting the weather a thousand years from now based on current meteorological methods is merely crazy. "As to the argument that we do not take into account the factor of intelligent beings in the universe is basically saying we should not study natural ecosystems because humans will rebuid them into cities or farms, so we should study cities and farms instead. Quite absurd, as we need understanding of how "pure" ecosystems work before we study human influence. I do not see why the basic logic of it is different on cosmic scale." I don't you are being fair in characterizing my expressed views as such. A better analogy would be that I'm basically arguing that when predicting how ecosystems will change over time, we should not predominantly make predictions under the assumption that human influence on ecosystems will remain constant or negligible. Of course we should study "pure" and "natural" ecosystems but that doesn't mean that we can predict the future of actual ecosystems merely on the basis of our knowledge of such natural ecosystems. I actually think you agree with me on this point. An actual prediction of the far future of the universe where sapient beings are treated as if they are non-existent is either not logically sound or not complying with available data. I'm not attacking what you are defending here so we are probably not really disagreeing as much as you think
Those predictions are mostly useful to spot errors in ours models. But yeah, I am always puzzled but stories confident of what IS in a black hole. Our models just were not built for such extreme cases. Heck, we don't even know yet how antimatter reacts to gravity !
The theory presented in the intro is closely mirroring the buddhist concept of transcending the mind into the buddha-state. This obviously deals with the inner reflections, while the theory deals with physically understanding the universe. I don't know where I'm going with this beyond just saying it. It just popped into my head and then wow'ed me speechless for a short while.
@erik2000 I don't know, really. But, ok, I guess. As long as it won't prompt someone to try and kill me or some other outrageous thing like that lololol
It was neat, but have to give the win to our beloved Isaac Arthur. Your narration seems more polished and of course the animation and to an extent, the music, make all the difference. Like everybody acknowledges, it's amazing the caliber of content you put out.
There is the theory of Poincare Recurrence time where over a near infinite amount of time that anything that can, even remotely possibly, happen, will happen and so that, say in a google years the exact sequence of events that led to our time can happen exactly again. This idea was pretty faithfully shown in the Futurama episode "The Late Phillip J. Fry"
OK, that just turned me on, already have a saga ready to launch and having thoughts about a second trilogy following that story line. i was planning to play with these end of the universe theories and that was such a great heads up on that subject. awesome job, thank you.
So are quasars basically very young galaxies? Matter forms around its center of mass, forms a supermassive black hole and an accretion disk around it, which forms stars, similarly to how accretion disks around stars form planets?
As humanity advance and our universe slowly decays or continues to expand; what options would a highly advanced human race have to survive? Could humanity simply build star ships that have a star in the center and troll the space for matter to maintain that fusion indefinitely? Or are other options to consider based on our know science?
Does it count if I watched that episode like 10 times already? It will-an an haven been in the past the next time we come around. morbotron.com/video/S07E07/poRUCLQA0LZYhd-A5osmaXjs6xY=.gif
anyone who would appreciate the whole quote already knows the whole quote. This way was better - makes you complete the phrase yourself, with more rhetorical and comedic and word-meaning-happy -recognition-and-validation/shibbolethy impact.
Every time I try to say the universe may have started at infinite size and infinite mass and infinite density and expanded to a state with finite density people think I'm crazy. Thanks for this video.
I enjoy the fact you give us all an eye on the future and the way our technology can grow and you also enjoy what was like Terry Pratchett. If you ever visit Holland, I hereby extend to you an invitation to share a beer.
I am completely dumbfounded at the lack of negativity in the comments section, i didnt think it was possible on youtube! Awsome channel though, love it!
Regarding Olbers' paradox about the dark night sky, is it really a paradox? The logic says that any line of sight you have will eventually land on a star, and therefore that point will be just as bright as a star. And while this is true for stars close to you, as you get further away the light will dim until you are only seeing individual photons. At that point if you move even further away you no longer see constant light, but rather the object will start to "blink" as only 1 photon at a time makes it to your eye. And as you get further away the gap between photons increases, and so at that point any star your line of sight lands on will no longer make that point as bright and hot as a star. I forget at what distance this happens (and I'm too lazy atm to recalculate it. lol), but I feel like this pretty much solves the paradox since it has to assume light is continuous when it is in fact made of discrete photons. Am I wrong somewhere with this? I'd appreciate any feedback people have, thanks!
Love this channel! I have it playing all day when I work from home as I find your voice so soothing and calming it helps keep me focused. I could listen to you reading out an old telephone book and still find it interesting. Listening to a clever person talk about clever things in such well produced videos also seems to inspire my to tackle more difficult projects so thank you for that assist :-) BTW, I never knew you had a speech impediment, I just thought you had one of those cool southern drawls, like Matthew McConaughey, which IMHO adds a lot to the engagement viewers have with your videos. Would love to see you doing some science videos for kids, would be awesome listening to you explain physics, chemistry etc and watching the excellent visuals. Maybe an idea for another channel? Anyone with kids (my young ones are 8 and 10) want to help encourage Isaac to give this a try? Perhaps some teachers out there might have a curriculum they can share?
Another great Arthursday series. Could you investigate something I’ve been thinking of. If everything happens for a reason. That means that we have have an infinite ‘why’ loop. What do we do?
After starting part 2, they point out that part 1, on this channel, talks about the history of the compendium of doom, while part 2 covers the current status and future. I think that makes this is the only history-centric video to be found on SFIA!
Not entirely, I slip a ton of history into the episodes and would do more if I could. It tends to be my prefer way of explaining lots of concepts, showing the context of why folks were asking the questions in the first place.
You can't understand the answer without first understanding the question... But yeah, thinking more about specific episodes, you're always talking about what we thought, when we thought it and why. It's only then that you say, "Well, it's actually all possible, and with just modern day physics!"
Your videos are just marvelous! So many questions I have are being articulated and while not necessarily answered (I mean, we can't be definite, right?), your logical speculations/explanations are tremendous. Mind blowing!!
It would be really cool if you had an own wiki for all the concepts you explore in these videos! It would be useful reference for any of the details (for example scales for megastructures etc.) from your videos.
I understand we shouldn't mock dark age people for thinking the earth is flat. but people who thnk that NOW make me injure my brain from facepalmming so hard. frankly, I dont think they really believe that. they are just trolling or siding with the opposite "opinion" just to be different. because different, thats why.
People in the Dark Age mostly didn't think about it, or at least record their opinions on the matter, their scholars would have known the world was probably a sphere though some might have thought it a disc, there's never really been a big 'the world is flat' belief until modern times, and yeah it's perplexing and weird. Honestly I think most do it just to be contrary.
Isaac Arthur I do remember reading there was a minor flat earth movement in the mid 1800's and even more bizzare there were some who were pushing a square earth movement. yes, I said square. people who took the bible's "4 corners of the world" in revelations litteraly. so there is an idiot out there claiming the moon landings were faked by aliens from atlantis because the earth is a flat square. way may have elected him too. there is no strength left in my arm to keep facepalming this much.
I think its a psy-op. It might be a giant prank with random individuals behind it (4chan for instance), or maybe it's a "real" organization (public or private. CIA or Shriners or ISIS or whoever) trying to destabilize society. I bet it's a big social engineering prank. Either way, it seems directed. Certainly many/most of the proponents know they're bullshitting. It's sad but not shocking that anyone would take it seriously, but look at all the other crazy stuff we get fed. (Usually politics and economics. Bullshitting about science seems new.)
If you're looking for part 2, click the link
th-cam.com/video/XLTb0V1BGNw/w-d-xo.html
Notes: Yeah we missed the typo in the title, there's no spell check there and everyone missed it in post production, there's usually one or two in any episode though of course the title itself is a trifle embarrassing, it's probably Karma punishing me for the slightly clickbait title. Also sorry about the delay on the audio-only parts, had to mix them after it went live, took a few minutes.
dude, u spelled "compendium" wrong on the intro
Worry not, Isaac, we'll gladly watch "The Compenium of Doom" if it's from you
Isaac Arthur Thank you for another fascinating episode! I watch this with my 12-year old daughter and asked her at the end what she thought. She said the episode was enjoyable and you explained the ideas really well 👍🏻
who cares, we are all just so grateful that you do what you do !!
+Isaac Arthur "Replacing Neurons with Nanorobots" make a Video about that, please ^^
There is yet another theory that this has already happened. There is yet a third theory which states that the previous two theories were made up over lunch by a wily editor for the Hitchhiker’s Guide to the Galaxy in order to boost sales
"What does the turtle stand on"?
"Another turtle".
"What does it stand on"?
(sigh) "Look, it's just turtles, all the way down"!
The issue is solved if it's a sea turtle
"What does the turtle stand on"?
Nothing. The turtle swims through the void
don't forget the four elephants that stand on the back of the turtle..
Fraser Henderson Lol! I know I've heard that before, but I can't remember where? Where is that from?
Romano Coombs That's funny, I should have got that. Been a fan of that show since the beginning. Actually been a fan of Adult Swim since way back in the Sea Lab and Brak days.Was really surprised how big R&M have become. I think it's one of the best but at that time slot. Just surprised as many people knew about it. There was a show Drinky Crow on AS maybe 10 yrs ago. If you like R&M you'd appreciate it. Sorry, starting to babble...
+Isaac Arthur i actually owe you life. I've been here since almost a beginning and i was a 110 kg at that time. Then i fell in love in 2 things - stationary cycling and your videos. Ever since i spent hundreds of hours spinning and watching to your videos over and over again hundred of times. And here i am now over 30kgs less still spinning like crazy watching to your crazy stuff. THANK. YOU.
Congratulations! I've had to lose weight before, and could probably stand to do so again, I'm terribly sedentary post-army, and its certainly much easier to do those long light cardio sessions with something to listen to
Thanks, it certainly is easier, an hour flies like a second. I am an IT engineer myself and "terribly sedentary" is what i am
Pawel Florczak - I need a bike!
Huzzah! Another great TH-cam science collab. Great job guys!
Thanks John!
Easily my two favorite channels, SFIA and JMG.
Thanks for all you both do.
Do I know you from somewhere?
::gets a drink::
::gets a snack::
::starts video::
I know, right!
#include "functions.h"
int MAXINT = 2^64-1
int WEEK = 604800
ptr CHANNEL = "Isaac Arthur"
void main(){
episode = GetNewEpisode(CHANNEL);
for(int i=0; MAXINT; 1)
{
wait(WEEK);
GetDrink();
GetSnack();
watch (CHANNEL, EPISODE);
}
}
[Maybe I got something wrong, long time no code.]
Exactly what I did .D
I'm waiting for my sub sammy to get here so I can start. For now I am reading a few comments :)
Drogo Baggins -- you are completely right. It's the same in c. I knew I'd be getting something wrong. More than 10 years no coding...
Your channel is nothing short of amazing mate. I've learnt so much from it, and you continue to impress me with how accessible you make it all. Kudos
You're a treasure Arthur - even on YT with the many amazing content creators.
Im not Commander Sheppard, but i wholeheartedly approve of this message. Amazing channel
Your videos are the best science fiction-esque and space science channel. Keep up the stellar work! (pun intended)
Isaac,
your videos are like conversations; that's what makes them wonderful as it allows the audience to deduce their own thoughts. Your collaborator lectures.
This I believe is the major distinction between good and boring teachers.
I've said it before, I'll say it again....
BEST TITLE EVER!!!!!
anthony mcdevitt
HAA! Great minds....
It sounds like an Invader Zim movie sequel thing (fantasy)... Invader Zim! And The Compendium of DOOM! I can even see the cover art. Zim standing right in the middle with a gun and the title "Invader Zim" above him. And below is lil' Grr, and in a chat bubble, "And The Compendium of DOOM!"
i'm running out of comments to describe how great this series is
totally agree. its insane that we can have content like this for free on a weekly basis. totally insane.
jet flaque and Kye Huelin these videos are free? Well, almost - Issac and Paul both have patrons and donors so the videos and the tremendous effort going into them are paid for - we're benefiting from a variation on philanthropy. And that's way cool. (hint - they need more patrons)
Agreed, Im not in employment right now, however, once I am again, I will certainly be supporting my favourite channels. who are: Isaac Arthur, Fraser Cain,
Joe Scott, Potholer54, Thunderfoot and Sargon of Akaad.
Kye Huelin Patreon support when you can? Sounds like a plan.
Video starts with HHGTTG quote, this cannot possibly be anything but good.
I'm not even kidding when I say I just spent 5 seconds stunned, wondering how I could think scrolling past this was even a question.
Remember that story. Tec support turns up to set up a computer at some holy order, works out the true name of god.
"And In the dark night sky the stars started winking out one by one."
A.C.Clarke: The Nine Billion Names of God
Story was published in his collection of the same name and few other places.
How do you think the universe became so weird in the first place? : Science fiction and futurism does it again.
@erik2000
Epigraph to "The Restaurant at the End of the Universe":
“There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.
There is another theory which states that this has already happened.”
Nothing like the feeling of thinking big thoughts.
I think we have to be prepared for the possibility, that there is something major that we do not know
about the Universe, and the even worse spectre, that we may never know.
Love the title.
Beautiful visuals this episode! Congrats to the graphics team
I was about to comment that as well. Love the colors!
I’m in the hospital today after a surgery Issac, so you being right on time made my day!
I hope you're feeling better soon!
I love the community you attract here Isaac
Isaac Arthur you would make the best audio books narrator alive.
:) I'm pretty sure I'll eventually either do a book or a collection of essays and would of course do an audiobook version for them, I was tempted to grab one of my own favorite narrators like John Lee for it, but I might do them myself, or do two versions.
I learn so much watching these! Thank you Isaac Arthur!
This title couldn't get any more badass. Just the fact that it's going to have a part 2...
New subscriber here. This actually got me kind of excited when I saw the new episode pop up. Sometimes anticipation and fun are a little hard for me to experience, so...thanks. It's appreciated. Listening to SCIENCE!!...even science that gets over my head at times is relieving in a manner I can't really articulate, so, again, thanks.
Welcome to the channel!
Issac Arthur is the new Carl Sagan.
I almost always fall asleep while watching your videos, which is good because I have a really hard time getting to sleep most nights. I do rewatch the ones I fall asleep during so that I can pay attention to what I missed because it's amazing content, but I'm really thankful that your voice is so relaxing
I also find that when I do fall asleep during a video I don't have nightmares. I'm just glad this channel exists lol
I'm glad to hear that, I'm an insomniac myself and always need an audiobook and fan blowing to get to bed. You might find the audio-only versions easier for sleeping to, specifically the narration-only ones minus the music, I do tend to like crashing loud intros and outros.
I'm so glad you two made the points you made early in this video. Many abusive forces today relentlessly try to force us into Manichaean views in disputes of every nature. We need people of your standing to be able to think in a more expanded way than that. Thank you both so much.
Yes there's a lot of truth to that, a dualism consisting of 'smart, new, right' vs 'dumb, old, wrong' that hinges on the latter even being outright evil that to be honest is terribly unscientific and irrational even while often lauding both as the only approach to understanding.
I find it frequently also that new things are castigated as dumb and wrong or outright evil, based upon traditionalist views that are concocted from wishfully inaccurate conceptions of past conditions. We should allow our ancestors to be seen in the full context of their times and development, and allow our fellow denizens of this time the same.
Adunai-Um, because it was based on a delusion. Godwin's Law, much?
2:36 "And while you can see water evaporate and rise into clouds, you can also see rocks tumble down the mountain, but never float back up." Well, is you wait long enough, you will see all those rocks being pushed back up into new mountains by tectonic forces, as fossils of sea creatures on top of the Himalayas will demonstrate.
The Compenium of Doom
What a great title for a great video, Happy Arthursday, everyone.
I have a theory that Isaac is an alien making these videos to uplift us to a higher level of intelligence... you're the best
Vinicius Demichei the dog face emoji is aids
yea whatever m8
Vinicius Demichei aids
This title is absolutely perfect for an Invader Zim movie, sequel thing (fantasy)... Invader Zim - And The Compendium of DOOM! I can even see the cover art. Zim right in the middle, squinting his right eye, hands menacingly clawing over the earth, and the title "Invader Zim" above him. And below is lil' Grr, and in a chat bubble, "And The Compendium of DOOM!"
I'm gonna sing the doom song now ^_^
I have to say I watched both of them twice, got the kids to watch it and shared it around. This is definitely one of your S-tier vids.
+Isaac Arthur you have an amazing talent for teaching people like me who struggle with books and stuff. thank you for the channel :)
There is another theory which states that this has already happened.
I wanted to write that but first checked if someone else already did. :D
i did not check befor
1000000 times
Yea, these days there is a theory of everything.
Bad Joke :p
"theory"
I am truly amazed at how lost I could be while listening to this, and yet somehow walk away feeling like I know a little more than when I walked in. Humanity truly has a interesting way of processing knowledge that it has trouble comprehending.
This would have Douglas Adams' favorote episode I'll bet. So long Douglas and thanks for all the fish!
I love it when awesome TH-camrs who I've been subscribed to come together to make cool content.
Where have I heard that opening line before? ;)
Hitchhikers Guide to the galaxy
Good morning everyone. Have a great Thursday.
This an incredible collab :)
Happy Arthursday everyone!
Great episode as always! But I just found one tiny flaw in the animation, where you talk about stars growing colder but the animation shows the star grow from yellow to blue which shows them growing hotter. It may fool some, but probably not those subbed to this channel.
ebigunso
Generally people associate the color blue with coldness. So, adding a blue hue to a fiery red star gets the message of cooling across.
It’s not a mistake if it’s deliberately done.
It might not be a mistake, but I like how this channel is true to the physics so even in that case I'd still give an objection to how it's presented. It's far better to show it go dimmer and thus actually colder.
ebigunso
Just imagine the star is moving toward you at a very high velocity causing the light to blue shift.
Thanks for another great video. Keep up the great work. I hope your channel continues to grow.
I made the same comment in part 2 but I'll repeat it here because I feel like it. I find myself very skeptical of "scientific predictions" concerning the end of the universe for three reasons which are rarely addressed in such discussions.
To begin with our scientific understanding of the universe is without doubt incomplete. Not only do we not know much about dark matter and dark energy, we still don't have a theory of quantum gravity. Given these and other unsolved mysteries of the universe, it is arrogant and premature to say that we can know how and if the the universe will end, especially given the impact scientific discoveries have had in the past in regards to this issue.
The second problem is that even if we had a sufficient understanding of all the natural phenomena we have encountered thus far, we would still only have knowledge of our universe as it manifests itself over timescales of billions of years early in its existence. Considering the fact that we seem to be dealing with timescales of trillions or quadrillions of years and a much more mature universe when we speak of the end of the universe, it seems questionable whether we could know (not to speak of whether we in fact do know) if and how the universe will end.
Finally such predictions seem to ignore the impact intelligent agents and civilizations could have on the future of the universe. While it is often rightfully pointed out of insignificant we are in relation to the rest of the universe, this observation doesn't necessarily apply in the far future, billions or perhaps trillions of years in the future. As the saying goes: sufficiently advanced technology is indistinguishable from magic. All this makes me have strong doubts of claims that the universe will end and that it will happen in this or that way.
why you think such considerations should preclude anyone from making scientific predictions? With this attitude, no progress in understanding is possible as predictions is not simply a whim, but a vital part of building better theories. You make prediction, check it vs reality, correct your theory and make a new prediction, check it again, etc. Granted, the end of the universe is not particularly verifiable thing, still you can build some models with the knowledge available and check if they add up, and add new knowledge to the picture as you gain it.
@Dmytro Lysak
I don't have a problem with making scientific predictions, even when the uncertainty is as high as it is in this case. I would in fact say that the considerations I bring up should do the opposite of precluding scientific predictions, they should preclude unscientific predictions. If one makes a prediction based on a description of reality which one knows is incomplete and overly simplified, then unless one has reason to think that the predictions is accurate, the prediction is not scientific. For example, if I were to predict that the feather I am holding in my hand will not fall to the ground if I drop it because birds fly, I hardly think that would be counted as a scientific prediction.
your example seems to me not related to the issue in question at all - it is in fact an example of flawed logic or "magic thinking", not insufficient information.
Anyway, when some hypothesis is conceived, information on it is rarely complete or accurate. In fact, it never is. If you manage to create a logical model based on available facts and make predictions based on it - it is science, even if the hypothesis created this way is totally wrong.
As an example, phlogiston theory was wrong, but still scientific.
Argument that we should not make assumptions and predictions if data is insufficient is against the very spirit of human curiosity, and, ultimately, of science. In fact, the more logically sound (and complying with available data) crazy theories you create, the better - these ideas, even if wrong, can be used to spark understanding later. You can cross them out when you find new facts against them (as in fact the video tells happened) or develop them.
As to the argument that we do not take into account the factor of intelligent beings in the universe is basically saying we should not study natural ecosystems because humans will rebuid them into cities or farms, so we should study cities and farms instead. Quite absurd, as we need understanding of how "pure" ecosystems work before we study human influence. I do not see why the basic logic of it is different on cosmic scale.
"your example seems to me not related to the issue in question at all - it is in fact an example of flawed logic or "magic thinking", not insufficient information."
It wasn't my intention to make the case that my example is analogous to the issue in question. I was merely trying to illustrate the point that not all predictions are scientific.
"Anyway, when some hypothesis is conceived, information on it is rarely complete or accurate. In fact, it never is. If you manage to create a logical model based on available facts and make predictions based on it - it is science, even if the hypothesis created this way is totally wrong."
I didn't say, as far as I know, that a hypothesis has to be composed of, or based on, complete or accurate information in order to be scientific. Instead I would say that extrapolation from current understanding doesn't always result in scientific predictions. A good example is how we can predict the weather in the short term by extrapolating from our current understanding but not in the long term. Predicting the end of the universe by extrapolating from our current understanding is about as scientific as a meteorological prediction of the weather in France a thousand years from now.
"Argument that we should not make assumptions and predictions if data is insufficient is against the very spirit of human curiosity, and, ultimately, of science. In fact, the more logically sound (and complying with available data) crazy theories you create, the better - these ideas, even if wrong, can be used to spark understanding later. You can cross them out when you find new facts against them (as in fact the video tells happened) or develop them."
The issue is not whether we should make assumption and predictions, but rather how seriously we should treat them. Under some conditions, making assumptions or predictions simply is a waste of time. Making crazy theories is fine but predicting the weather a thousand years from now based on current meteorological methods is merely crazy.
"As to the argument that we do not take into account the factor of intelligent beings in the universe is basically saying we should not study natural ecosystems because humans will rebuid them into cities or farms, so we should study cities and farms instead. Quite absurd, as we need understanding of how "pure" ecosystems work before we study human influence. I do not see why the basic logic of it is different on cosmic scale."
I don't you are being fair in characterizing my expressed views as such. A better analogy would be that I'm basically arguing that when predicting how ecosystems will change over time, we should not predominantly make predictions under the assumption that human influence on ecosystems will remain constant or negligible. Of course we should study "pure" and "natural" ecosystems but that doesn't mean that we can predict the future of actual ecosystems merely on the basis of our knowledge of such natural ecosystems. I actually think you agree with me on this point. An actual prediction of the far future of the universe where sapient beings are treated as if they are non-existent is either not logically sound or not complying with available data. I'm not attacking what you are defending here so we are probably not really disagreeing as much as you think
Those predictions are mostly useful to spot errors in ours models.
But yeah, I am always puzzled but stories confident of what IS in a black hole. Our models just were not built for such extreme cases.
Heck, we don't even know yet how antimatter reacts to gravity !
Absolutely love these collaboration videos
So long and thanks for all the fish
Yaas yaas yaas I got that reference ;p
These vids just keep the awesomeness coming!
Another great video, you've got this.
That awesome Hitchhiker’s Guide to the Galaxy quote at the beginning 👌🏻👌🏻👌🏻👌🏻
The theory presented in the intro is closely mirroring the buddhist concept of transcending the mind into the buddha-state. This obviously deals with the inner reflections, while the theory deals with physically understanding the universe. I don't know where I'm going with this beyond just saying it. It just popped into my head and then wow'ed me speechless for a short while.
@erik2000 I don't know, really. But, ok, I guess. As long as it won't prompt someone to try and kill me or some other outrageous thing like that lololol
the collaborative effort these yt vids represent is getting way cool especially the list of digital workers doing the graphics and soundtracks.
It was neat, but have to give the win to our beloved Isaac Arthur. Your narration seems more polished and of course the animation and to an extent, the music, make all the difference. Like everybody acknowledges, it's amazing the caliber of content you put out.
absolutely amazing. thank you so much again for more incredible content.
Eagerly awaiting the next installment :) thanks isaac !!
Aristarchus was definitely an astronomer light years ahead of his time.
The only way I know which day of the week thursday is are these amazing videos.
Part 1 of many ? Excellent :)
I love the straightforward and simple title. 'The Compendium of Doom'
You should do a video on Entropy
I don't know, I tried writing a script on it once, it started off strong but got increasingly weak and disorganized as I went.
+Isaac Arthur Lmao, that was an awesome answer! :)
Isaac Arthur - Best reply ever . . . . .
there is an other theory, that this already happend.
I also love adams.
MusikCassette we've got a hoopy freud over here
Rachel Harrison He really knows where his towel is.
MusikCassette - yeah, more than once. LOL
There is another theory that says this has already happened.
many times.
Cylons!
haha, an amusing idea but it seems absurd to think that the universe gives a shit what anyone might think :)
There is the theory of Poincare Recurrence time where over a near infinite amount of time that anything that can, even remotely possibly, happen, will happen and so that, say in a google years the exact sequence of events that led to our time can happen exactly again.
This idea was pretty faithfully shown in the Futurama episode "The Late Phillip J. Fry"
Apparently Hulu and Netflix has it. I was an uber-fan of the show so I bought all the DVDs.
19:30 So does that mean that the surface of last scattering was in the 'visible light' range at some point?
Yes, since it was very hot at its formation : 3000 K.
and yet another fantastic video keep up good work isaac
Best Thursday of the year!
Thanks for making some very informative videos that explore various topics.
Compendium of Doom? so metal
Possibly Iron-56
🤘🤘🤘🤘🤘🤘🤘🤘 Hail satan and explore the galaxy.
OK, that just turned me on, already have a saga ready to launch and having thoughts about a second trilogy following that story line. i was planning to play with these end of the universe theories and that was such a great heads up on that subject. awesome job, thank you.
love it. nice format isaac.
So are quasars basically very young galaxies? Matter forms around its center of mass, forms a supermassive black hole and an accretion disk around it, which forms stars, similarly to how accretion disks around stars form planets?
Pretty sure that's the prevailing consensus.
Not exactly young galaxies, but rather features most common in young galaxies near their center
Peak performance Sir, can't wait for the next episode.
As humanity advance and our universe slowly decays or continues to expand; what options would a highly advanced human race have to survive? Could humanity simply build star ships that have a star in the center and troll the space for matter to maintain that fusion indefinitely? Or are other options to consider based on our know science?
escape this universe for a new, younger universe...
You gotta finish that quote! "There is another theory which states that this has already happened."
Hey Karl Putz Look up Poincare Recurrence time.
And if the Wikipedia or other explanations are lacking, watch the Futurama episode "The Late Phillip J. Fry"
Does it count if I watched that episode like 10 times already? It will-an an haven been in the past the next time we come around.
morbotron.com/video/S07E07/poRUCLQA0LZYhd-A5osmaXjs6xY=.gif
anyone who would appreciate the whole quote already knows the whole quote. This way was better - makes you complete the phrase yourself, with more rhetorical and comedic and word-meaning-happy -recognition-and-validation/shibbolethy impact.
Thx for showing me #AskaSpaceman! I needed some more stuff, I went trough all your videos too many times already ;)
Also around Aristarchus' time they already theorized about extrasolar planets and that some might have life on them.
I love this guys channel so goddamn much..
I love Isaac Arthur's stuff! How can I not click on one titled "Compendium of Doom"? Isaac, stop it, I have to sleep!
Every time I try to say the universe may have started at infinite size and infinite mass and infinite density and expanded to a state with finite density people think I'm crazy.
Thanks for this video.
I enjoy the fact you give us all an eye on the future and the way our technology can grow and you also enjoy what was like Terry Pratchett. If you ever visit Holland, I hereby extend to you an invitation to share a beer.
I am completely dumbfounded at the lack of negativity in the comments section, i didnt think it was possible on youtube! Awsome channel though, love it!
Hey Isaac. Thank you for the video. This is definitely a tricky subject.
I simply have to aqsk and I hope that you'll answer, but where do you get those animations for your videos? Esspecially the one at 15:39 ?
Regarding Olbers' paradox about the dark night sky, is it really a paradox? The logic says that any line of sight you have will eventually land on a star, and therefore that point will be just as bright as a star. And while this is true for stars close to you, as you get further away the light will dim until you are only seeing individual photons. At that point if you move even further away you no longer see constant light, but rather the object will start to "blink" as only 1 photon at a time makes it to your eye. And as you get further away the gap between photons increases, and so at that point any star your line of sight lands on will no longer make that point as bright and hot as a star.
I forget at what distance this happens (and I'm too lazy atm to recalculate it. lol), but I feel like this pretty much solves the paradox since it has to assume light is continuous when it is in fact made of discrete photons.
Am I wrong somewhere with this? I'd appreciate any feedback people have, thanks!
David Stagg - That makes sense, and it matches my question: How far away would a galaxy be when it's receding at (or almost) the speed of light?
David Stagg - and sooner or later, it would all fade into the cosmic background radiation noise.
I think dispersion exactly compensated by the width of the star.
I really hope you make tons of money out of these videos. They are SO INTERESTING.
Yay, Paul! *waves hello from the WSH Crew* :D
Love this channel! I have it playing all day when I work from home as I find your voice so soothing and calming it helps keep me focused. I could listen to you reading out an old telephone book and still find it interesting. Listening to a clever person talk about clever things in such well produced videos also seems to inspire my to tackle more difficult projects so thank you for that assist :-) BTW, I never knew you had a speech impediment, I just thought you had one of those cool southern drawls, like Matthew McConaughey, which IMHO adds a lot to the engagement viewers have with your videos. Would love to see you doing some science videos for kids, would be awesome listening to you explain physics, chemistry etc and watching the excellent visuals. Maybe an idea for another channel?
Anyone with kids (my young ones are 8 and 10) want to help encourage Isaac to give this a try? Perhaps some teachers out there might have a curriculum they can share?
Another great Arthursday series. Could you investigate something I’ve been thinking of. If everything happens for a reason. That means that we have have an infinite ‘why’ loop. What do we do?
Happy Arthursday!
Dreams are what expands universe, love holds it together.
This is the first video that has made me understand why he considered it to be the biggest blunder of his life.
Did you get that theory at the beginning of the show from your Hitchhiker's Guide to Galaxy Isaac Arthur?
And it's my birthday! Thanks.
Damn, the topic is a bit.... I don't know. Either way, Happy Birthday.
Thanks! To be fair most days I feel like the universe is about to end!
After starting part 2, they point out that part 1, on this channel, talks about the history of the compendium of doom, while part 2 covers the current status and future.
I think that makes this is the only history-centric video to be found on SFIA!
Not entirely, I slip a ton of history into the episodes and would do more if I could. It tends to be my prefer way of explaining lots of concepts, showing the context of why folks were asking the questions in the first place.
You can't understand the answer without first understanding the question...
But yeah, thinking more about specific episodes, you're always talking about what we thought, when we thought it and why. It's only then that you say, "Well, it's actually all possible, and with just modern day physics!"
Comprehensive, as always.
I cant wait for the February 1st collab
It's Arthursday already?
This episode id already well of new knowledge !
“The Surface of Last Scattering “
Excellent 🤔
Your videos are just marvelous! So many questions I have are being articulated and while not necessarily answered (I mean, we can't be definite, right?), your logical speculations/explanations are tremendous. Mind blowing!!
7:00 Funfact: MOND is the German word for "moon".
Betcha didn´t know that, amiright? ;)
It would be really cool if you had an own wiki for all the concepts you explore in these videos! It would be useful reference for any of the details (for example scales for megastructures etc.) from your videos.
the only reason this great channel has less subscribers can be that there are not enough smart people to understand the topics in this channel.
"The only reason people could have different interests than my own is because they're stupid!" - Smart Person?
This is one series I can ask for it not to be completed...considering that opening line.
Oh wait nope you already made it and we're still here.
D364000 - yeah, but the world just got a whole lot more complicated.
I understand we shouldn't mock dark age people for thinking the earth is flat. but people who thnk that NOW make me injure my brain from facepalmming so hard. frankly, I dont think they really believe that. they are just trolling or siding with the opposite "opinion" just to be different. because different, thats why.
People in the Dark Age mostly didn't think about it, or at least record their opinions on the matter, their scholars would have known the world was probably a sphere though some might have thought it a disc, there's never really been a big 'the world is flat' belief until modern times, and yeah it's perplexing and weird. Honestly I think most do it just to be contrary.
Isaac Arthur I do remember reading there was a minor flat earth movement in the mid 1800's and even more bizzare there were some who were pushing a square earth movement. yes, I said square. people who took the bible's "4 corners of the world" in revelations litteraly. so there is an idiot out there claiming the moon landings were faked by aliens from atlantis because the earth is a flat square. way may have elected him too. there is no strength left in my arm to keep facepalming this much.
I think its a psy-op. It might be a giant prank with random individuals behind it (4chan for instance), or maybe it's a "real" organization (public or private. CIA or Shriners or ISIS or whoever) trying to destabilize society.
I bet it's a big social engineering prank. Either way, it seems directed. Certainly many/most of the proponents know they're bullshitting. It's sad but not shocking that anyone would take it seriously, but look at all the other crazy stuff we get fed. (Usually politics and economics. Bullshitting about science seems new.)
Awesome as usual!
Really interesting, great episode. :)