Could Life Be Older Than Earth?
ฝัง
- เผยแพร่เมื่อ 24 พ.ย. 2014
- SciShow Space explores new theories about the timing of the development of life on Earth, and elsewhere in the universe.
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Sources:
arxiv.org/pdf/1312.0613.pdf
www.technologyreview.com/view/...
arxiv.org/abs/1304.3381
Haha, I laughed so hard when he took his glasses off.
In other news: another settlement needs our help. I'll mark the location on your map.
GODDAMNIT, PRESTON!!!
Hahaha...beautiful just beautiful.
Houston we have a problem
Said every videogame ever... except pac man. In pac man the map IS the game
oh god this meme still funny😂
I've always pondered the question "Why can't we (humans) be the first advanced species in the universe, and why can't we be the "aliens" that fly over planets in the galaxies to study life?"
Devin McGill One of the possibilities, but if aliens exist it is likely that we are not the first. This vid just mentioned that the ingredients for life are present for billions of years before earth was formed, so it is well possible that in distant galaxys intelligent life has existed for a long time. Even a species a hundred thousand years more advanced is beyond our comprehension, and a hundred thousand years is nothing considering the age of the universe.
So yeah we can be the first, but if alien life can exist then we're probably not.
But that introduces the Fermi paradox again...
Luckily, those guys made their research freely available on arxiv.org. And just by skimming over the paper, I found three things:
1. They are not mathematicians and are just "playing" with function and extrapolation.
2. They base their extrapolation on 5 (!) points, which they cherry picked, there are many more that don't fit their pattern. And they use an exponential fit without any explanation for that assumption. From that data and with these error margins, I could basically make life look any age I want.
3. The paper is very poorly written from a scientific viewpoint, and to top things off it wasn't accepted for publication by any journal, they just uploaded in on the Arxiv server. In early 2013. And were seriously critizised for making proper scientists look bad with such ideas and claims.
I am a little disappointed that this research was not presented a little more critically here on SciShow, seeing how any google search will reveal that it is anything but accepted within the scientific community.
Eh, their job is to get views, and they got you to click on it didn't they? And besides pushing the limits of theories is a good thing, it either shows how weak and flimsy they are, or how accurate they may be. Just so long as you don't hear everything as 'proven fact'.
At least Sci Show made you think about it yourself, and you went out and researched it for yourself. Ultimately that's the point, to make you curious enough to explore for yourself.
This reminded me of Kent Ham's "proof" of the global flood by extrapolating supposed population growth over time. Just like in that case, the speed in which the complexity of the genome increase or deacreases is most likely variable. The figure they presented might work as a statistical average within the time period studied, but only within it.
Good Theory which can't be disregarded even if you don't find the math/researchers credible.
Josh Neubert At this point, it is only a hypothesis at best. I agree with Mr Fahrenberger that it should be presented in a much more toned down manner, if at all.
Life might be older then earth but I believe that potatoes are older then time, think about it.
Shieeeeeet
*than
Matthew Coupland you forget the spaghetti dragons :/
Matthew Coupland u got that right
+Matthew Coupland Kinda like Time And Relative Dimension In Space being bigger on the inside. That's some deep stuff there dude. Potatoes....Whoa....mind=blown...
What people need to understand is that our planet is NOT the sweet perfect place we make it out to be, it suffered mass extinctions, meteor hits and numerous ice ages, that probably held back intelligent life a lot.
So yeah, most definitely someone was more lucky than us, they're probably loooong dead by now, I imagine us picking up signals from alien life and the speculate how long it's been since their sun exploded.
Why the hell doesn't your comment have any likes? I just liked it, because this is a fantastic point. It's not a perfect spot and there might be better spots out there in the universe, statistically speaking. Also, people under estimate the vastness of space.
Kal Sage The vastness of of even our own solar system is beyond our human comprehension, there is barely anything we can compare things to.
So yeah, lotta stuff out there.
My favourite episode yet! Not just a rehash of old news already covered twenty times, but an interesting perspective and new (to me) research on a fascinating topic. Super host too! Thanks!!!
This was a REALLY good episode. Loved it!
So life came to Earth like viral infections with a sneeze?
+actionmethod More like,microscopic protein packets and molecular bundles
+actionmethod pretty much, yes.
Good analogy. Though it is still only one *possible* explanation
No, it came 2nd Class in the Post
Send the handkerchief oh blessed one, that we may be wiped clean.
3:48
Itslef
This video is 2 years old and I can't see another comment that saw that.
Evil Paragon 2 lol
Just watched and searched itself to see if anyone else picked it up.
so glad I subbed. Great show.
More episodes like this please :)
lol. gotta love how the green screen interacts with his glasses
Maaaaaaan, why can't we have been born in a few thousand years and be part of a galactic federation?
More episodes like this, please!
I really like the "I'm not saying" reference. Love this channel!
I think the questions of life "where, how, when, and why" but I think "what" is not asked often enough. What is life, as in what can be alive. Everything is so limited to "carbon/oxygen DNA cellular life" what else could there be? Maybe methane/ammonia based life at -200, maybe something with sulfur or chlorine or some other chemical cocktail?
en.wikipedia.org/wiki/Hypothetical_types_of_biochemistry#Non-carbon-based_biochemistries
Excellent point! If we don't know what life is, how can we even begin to look for it?
What is life, baby don't hurt me?
At what point could an AI be considered alive?
What about viruses?
Could life be nothing but some sort of complex, self sustaining chain reaction?
How complex is complex enough?
I guess you will end up with different levels of aliveness or some kind of strict philosophical/religious border.
gurl those glasses are a m a z i n g !
+Sergio Romero
Yeah, but they hide his amazing bright eyes.
Amazing episode, ty DNews.
Amazing thought! Also top job on the "taking glasses down and looking into the camera" move!
This is the reason why you shouldn't just use extrapolation...
xkcd.com/605/
TheJaredtheJaredlong The minimum required for extrapolation is three separate data points though. Anything less than that is just a line.
Kyon Three data points doesn't prove much either... If you try to extrapolate anything beyond it's boundaries there's a good chance you're going to get bad results.
You mean like everything scientists say we know about cosmology? I agree.
That point is as valid as Panspermia itself, and for that matter, any other theory
esearch as well - until it becomes proved, of course.
The difference is that by extrapolating, you are doing something with the available data or lack of it, if you will.
What I'm trying to say is that it's better to do\try something, because doing\trying nothing just because it's unlikely or unreasonable, won't get us anywhere.
Scishow Space is very good at damage control. This episode started crazy, got crazier, then came back down to Earth.
LIKE THE MOLECULES IN PANSPERMIA HAHAHA AMIRITE?
Liked this one, good job and thanks ;)
Awesome episode!
what I never see : "when, or where is life, NOT AS WE KNOW IT"
+Ghosttardis that's what i was about to comment, even in our planet we have life based on carbon (as we are) and that's what we know, carbon is simple, it's common and it's easy to move and edit. but also in the depths of the ocean, next where the continental plates meet the lava there's life based on sulfur, that life needs a lot of pressure and temperature to survive, so the question is why people don't even contemplate that there's possibility for life to exist even in mercury where there's a lot of pressure and heat? and don't even think about other planets that are not "safe for human life"
+Joachim Von Grimorium thank you!
The obvious answer there is: "Dunno, what does life we DON'T know look like?"
The first part about life starting over 9 billion years ago reminds me of this: xkcd.com/605/
(Don't forget the mouseover text: "By the third trimester, there will be hundreds of babies inside of you!")
that is amazing
Kimmy Awesomness
I love me some XKCD :)
IceMetalPunk:D
Loved the episode
this is amazing! :D
ive always wondered if its possible for life to have developed without a plannet... i mean its not impossible... right?
Probably
to be fair we have found organisms that can survive in space so its possible that life could form in space i guess.
+Revampedharpy09 there is a difference between surviving and living. For life to *live* it must be able to take in energy and reproduce. Generally that means finding food and adding mass, two hard things to do in zero g. Maybe life could live out it's life cycle on dust and debris, but I doubt that u could get together all the things needed for genesis of life without a significant bundle of matter
Ken Oakleaf i know im just saying we know that it is theoretically possible now
Why would it matter if the life originated somewhere else - it had to start somewhere no matter what!
The whole "maybe life didn't start on earth" doesn't solve the mystery of how it began.
It would certainly solve how it started here (by that I mean potentially what sparked life as we know it) and potentially serve as a means to what we should look for and how to look for it elsewhere in the universe.
jadedtwin If by "solve" you mean "pass the buck on," then yes: it would "solve" how life started on earth.
MicManGuy True, it would move the problem a step, but that would still mean that we know something we didn't know yet, namely that life didn't form on this planet. (provided that this can be confirmed of course).
The next step then would be to look for how life could have arisen somwhere else in the universe.
The big point here is that if we were to continue assuming that life arose on this planet, when it might as wel have arisen somewhere else, then we are labouring under a misapprehension, and a lot of science would be for naught.
So it's best to make sure that life actually did arise here, before we try to find out how it arose here.
Not that it's a zero sum game, but I'm sure you get the point.
It does blow god the fuck out though. Assuming they can find more evidence for it as a theory.
This is honestly one of the most childish, unscientific hypothesis ever taken seriously. All it shows is that using extrapolation to build a model of biological evolution (and of cosmology) is fundamentally flawed.
I think this was the most awesome idea ever... I support further research inthis area.
Best SciShow Space yet! I don't know this guys name yet but he's getting better.
My mind. She is blown.
ARE YOU ASSUMING YOUR MINDS GENDERRRRR????!!!!?!'
Man I hope I live to see the day where I can specialize in xenobiology in university.
+Doom Muffinz Xenobiology? Like the study of Xenomorphs? That'd be awesome.
+Doom Muffinz No, not xenobiology; xenolinguistics! Tak, tar burnschlag ugg arbiolus dem'k? ☺
+wikiwikiwee wtf?! 😝
And that will also be the day where donal Trump want to build a space wall because all thoses aliens are criminal and rapist !
Awesome episode.
Typo... "Itslef". With that out of the way, great episode guys! I think thought provoking ideas like this help keep scientific curiosity flourishing. Thank you for all you do at Sci Show Space!
I have often wondered if we are the first technologically advanced species at least in this galaxy and if so, what would that actually mean and how would it impact humanity?
“Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” - Arthur C. Clarke
*****
no empirical evidence for ancient aliens
***** This makes no sense at all. Why would it matter if we caught them if you're saying ancient humans had contact with them? Also, why would there be no evidence of alien life visiting Earth. Thats just a fairytale.
*****
That they were attempting to explain natural phenomena. Read the old testament objectively and you will see "god" is nature itself.
***** you're making assumptions of alien life.like for instance, that they're "smart" whatever that means. or that alien life have the same decision making process as humans. stop making ungrounded assumptions about something that may not even exist.
Wait, are they theoretically biologists, or do they study theoretical biology? :P
lol you know what he meant ;)
Totally Fascinating!
I liked ths one. Kinda made me think of life in a new way. More videos like this!
interstellar mushroom
Where is Hank?!
+Makoto Kazuki He usually doesn't host Scishow Space. I mean, he's hosted a couple of episodes, but the host is typically this guy, Reid Reimers.
Tricell CEO Yeah I made a mistake, I was watching SciShow and just kept clicking the next video at the end of it and didn't realize I went into a different channel lol
Beautiful, mind-blowing, interesting, hypothesis
Very cool episode
Sure. Why not?
As far as I'm concerned that's a no brainer. We are not the best the universe has to offer. If we are then I really feel sorry for the future of the universe.
I'm going to launch a Company called Panspermia.
Waaaaaaaay too late there dude sorry dude. It's not a new idea. Been around for decades. You're probably also too late to start a band, indie coffee shop, cult, nightclub, self published novel, indie movie or sci-fi themed porno caled Panspermia ;)
James Lewis Haha yeah fuck you are so right x) I wouldnt be surprised if there is a Company where you can donate Sperm which is then launched to other planets to be brought to life by possible future aliens. I wonder what a half human half alien me would look like.
Episodes like this and 'your brain is plastic' are why I love scishow
Was interesting. Thanks.
Sometimes I think that the human traits that got us off the Savannah and into skyscrapers are the same ones that are holding us back right now.
Think about it, most human inventions are either born out of greed, or the desire to kill other humans. Which is also usually instigated by greed.
Edit: Wait, what is that you said about trends in genetic complexity..? That sounds like a pretty compelling argument.
+Peter Timowreef fun fact- wars initiated the creation and development of computers.
Ushira Dharmaratne
They say necessity is the mother of all invention. And since we've all ready conquered nature all that's left to conquer is ourselves.
is the future vegan? theres some sense in being several times more efficent food wize.
+Luke thompson 🌽🍎🍍🍌🍉🍐🍏🍇! I'm with you!
Well the most efficient food option in terms of investment and yield is insects, very low investment for a high yield. So no, not veganism.
The problem with pure veganism though is not only would we need to plant more we'd also be losing a use for much of the parts of crops we can't or wont eat. A lot of cattle feed is leftover crops and by products from brewing.
Then we also get into the issue of pets, dogs and cats must have meat and presently pet food is made of the cuts and pieces of livestock that we can't or wont eat. The system we have now while not perfect does make decent use of what could simply end up as waste otherwise. So no vegan isn't necessarily more efficient.
Older than 6000 years? Just because there are millions of pages of peer reviewed research, multiple fields of science and unambiguous evidence from the smallest to the largest scale in agreement about how life developed, I choose to believe a jumbled collection of contradictory tales from semi-illiterate unknowns about a magic man and his despotic father. God be praised
+James Harrison You forgot evidence of human life dating back 10,000 years! Better disregard that mumbo-jumbo too!
LOVE IT when I learn something new!!! :D
well done!
Why do people in the comment section hate religion? I'm "religious" but love science and its theories. They are our take on how and what this universe is and was.
because in day to day expeirences, us non religous people get a bad rap.
And that's not right. It really shouldnt matter
Shouldn't
Because religion contradicts science.
Atheism doesn't cause wars. Theism does.
Older than 6000 years? Just because there are millions of pages of peer reviewed research, multiple fields of science and unambiguous evidence from the smallest to the largest scale in agreement about how life developed, I choose to believe a jumbled collection of contradictory tales from semi-illiterate unknowns about a magic man and his despotic father. God be praised!!
Nice sarcasm :D
Way to show off your intellect by damping down that internal hatred and disdain for others and keeping a cool and mature disposition to fellow humans. Really proving that humanity has what it takes to be not barbaric animals grunting at each other and waving sticks around in a threatening manner. Way to go.
Thought-provoking. Thanks.
1:57 you're best acting so far, very good, congratulations
Mindblowing theories!
more like this please
Gotta love this guy :3
Awesome!
Dude! I was so distracted at 2:02 when you took your glasses off... your eyes got so big all of a sudden. ;)
It maybe possible for life to exist elsewhere, but the potential for life on earth is much greater, because here on earth, life evolved into fractal stages, even enabling rediscovery of the mystery of our origin -!!!
MESMERIZING
Kudos for the awesome evil look at 2:02! :))
I always skip the ads, I've never watched an ad, but I just watched a 12 minute go pro ad- it was worth it
WOW can you imagine that, a warm planet without a sun, bathing in the warm light of the early universe? This is so cool!
intersting! very very interesting !!!!
The glasses removal is classic lol
This is something I've often wondered about. Cool Video.
Nice!
loved it
The universe started off very hot and has been cooling ever since. It stands to reason that at some point in the distant past the entire universe should have reached a temperature where liquid water and life could have started. Those seeds were then spread throughout the cosmos. So life could potentially be everywhere.
Yes, but could we have had heavier elements by then? Remember, it all started as hydrogen and helium, and it wasn't until the first stars formed and died that we even got things like oxygen and carbon.
I like all the responses that are essentially saying "this is bad because its not what I've been taught."
Thanks
That dramatic look is soo gifable :)
Hey there SSS - since rogue planets were mentioned, was wondering if you guys could make a video of it.
Cheers, keep it up.
1:56 was bloody brilliant! hahah
1:59 hahahaha omg I love this part
i love you MAN
i feel like this video should be on regular scishow.
Love the part where he takes off his specs and goes "WHAT IF LIFE EXISTS BEFORE THE EARTH ITSELF"
Kinda reminded how new games start in Spore. Your creature starts off as a cell that was brought to the planet you chose via a meteor, or asteroid, that struck the planet.
Ok, that comment about rogue planets with liquid water in the early universe just blew my mind.
I am currently writing a research paper on a very similar topic. The likelihood of extraterrestrial life elsewhere in the universe--particularly extremophiles, capable of surviving the harshest environments on Earth.
Where can I find your research when its done?
Claudio D. If you're that interested, go and google some papers yourself, and "scishow" made an episode on this topic, I think it was called "tardigrade". It also talks about panspermia hypothesis and it's worth watching!
... whoa man slow down this melted mah brain
feel good to hear that we're unique form of life even not confirm it yet. fun to think.
Hah! Sounds crazy . . . and awesome!
Nice
u got dem glasses moves downnn
Head exploded right at @0:03
Really enjoying SSSpace 'all-out coverage' topics, not so much the toned down stuff on SS main channel
OMG that was insane
"are we alone in the universe?". And then asking question like, are we the most advance civilization? you clearly answered your first question with this one.
Just a thinking out loud question here: Why would life have to come from other life-friendly planets? If life (in its most basic form) is a combination of fairly common chemicals on a planet that supports its development, why would life not emerge? This would allow life to appear throughout the universe independent of other planets. Panspermia is a valid theory, but I just think that it's more likely that life (on Earth at least) was formed chemically.
Yeah, I keep forgetting that our star is in the "in the middle of nowhere" part of our galaxy, and that things are, and definitely used to be, much closer together than our local interstellar neighborhood.
***** Much closer maybe, but still very far. Even if our Moon was just as hospitable as Earth, imho it would be still almost impossible for life to get there without some advanced technology.
neuron1618 Advanced technology like asteroids or meteors?
( ͡° ͜ʖ ͡°) No. More like rockets. Implying that getting from Earth to Moon by an asteroid impact while staying alive is almost impossible.
neuron1618 We're not talking about multi-cellular life here. Bacteria could easily survive inside a meteor as meteors are still frozen solid after entering the atmosphere. An asteroid impact would throw millions of tons of material into space that could impact other planets. It's why we have material from Mars on Earth.
He wore his glassed today just so he could slowly take em off for that quote haha
That thing about the average temperature in the universe being ideal for life was quite interesting.
funny, i was thinking about exactly that when i waited for the doctor.
i was mainly thinking about the possibility that organic compounds could've developed on a different planet and then somehow got carried here.
now i feel even more followed than i already do...
Didn't know at 6 I could read people's thoughts from decades in the future. I mean that must be why I thought of it too, right? Because you're the only one who ever thought about it?
please stick to wanking it to cartoons, wits doesn't seem to be exactly your forte...
and seriously, +1 to your own comment? even internettrolls should have standards.
I think an episode on Neutrinos would be quite interesting to see. They're present at the first fusion of a star.
Typo at 3:46. "Itself" is written as "Itslef".
3:47 shows that I'm not the only one why types "ITSLEF" sometimes.
Life goes way back! Woo Hoo!