Does Life Need a Multiverse to Exist?

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Life exists in our universe. There we go - one hopefully uncontroversial statement. Therefore our universe is capable of producing and supporting life. How am I going? Two for two? Let’s try for three: therefore there are countless universes. Hmmm. Did I break my streak?
Hosted by Matt O'Dowd
Written by Matt O'Dowd
Graphics by Leonardo Scholzer & Adriano Leal
Directed by: Andrew Kornhaber
Executive Producers: Eric Brown & Andrew Kornhaber
Our universe seems to operate according to a set of fundamental rules that we try to understand and model with the equations of our laws of physics. Those equations always include one or more fundamental constants - simple numbers that set the scale for the equation. We can’t determine the values of these constants from pure theory - we have to measure them in the real universe. These are things like the speed of light, the Planck constant, the masses of the elementary particles, and the constants defining the relative strengths of the fundamental forces - the so-called coupling constants.
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  • As with life n death, forrune and misfortune, we are all lucky to be here let alone question or wonder over it. One thing ive noticed is that as intelligent entities even in isolation from books or knowledge sources, even as a child i wondered all these things, without ever being exposed to the big scientific theories, so are we all Boltzman type brains thinking or working on these problems. Is my simulation the same as yours? Whatever this rambling remeber no religion ever teaches gratefulness for just being, it all seems aimed at whats next after this and i want more life. Be grateful for the immense probablities that had to be in place just for u 2 read my words!

    James masonJames mason10 ชั่วโมงที่ผ่านมา
  • How can we prove the presence of multiverse? There will be infinite number of them. Just imagine if we change only 1 out 20 free but essential parameters of this universe, namely Planck's constant. Say we arrange a set of universe with Planck's constants spread from 10^100 to 10^-100, say each universe has the tiniest increment of this parameter. That variation set of Planck's constants is already infinite. We haven't talked about the other 19 parameters.

    Ocean FlyerOcean Flyer23 ชั่วโมงที่ผ่านมา
  • Some religious people use fine tuning to justify their particular god(s). Another example of religions trying to use our current ignorance as justification for their unsubstantiated beliefs.

    David KelleyDavid Kelleyวันที่ผ่านมา
  • So if I over-generalize, a goldilocks universe is one where energy dissipates at some ideal rate such that stable structures (matter) exist for long enough windows to develop sentient life. Makes you appreciate the vastness of it all :)

    Chris DustonChris Dustonวันที่ผ่านมา
  • Therefore there must be a Multi Multiverse: there must be lots of multiverses, and our universe is in a "luky multiverse" that has constants. Therefore there must be a Multi Multimultiverse for the same reasons, and so on up to a fractal (multi^infinite)verse. This idea is good on so many levels.

    Marco MartinettoMarco Martinetto2 วันที่ผ่านมา
  • This will sound morbid but I can't help thinking this way. Even if we are the first intelligent life to exist, someday you and I will die and never know we existed. Further yet, someday all of time/space will cease to exist and none of anything we ever do or did will matter....Makes you wonder what is the purpose of anything? My advise...find something you enjoy doing while you are here.

    ______2 วันที่ผ่านมา
  • I don't agree with the parallel universes theory, it attempts to explain the existence of the universe without God. There is only one of me or you, more you than me though, i am very proud of my creation and the people in it. The time has come for me to act, I realise that you will take at least a year to adjust.

    Barry DeeksBarry Deeks3 วันที่ผ่านมา
  • "Life" is not actually a thing. There's no "life" and "unlife". No, really, there is not.

    TheOneAndOnlySameTheOneAndOnlySame5 วันที่ผ่านมา
  • It looks so perfect becose our knowledge is based on our serounding. Just like the 4e demension is hard to amagion but the 3e is well understood. Our logic is puurly based on logic

    Csababo BaloCsababo Balo5 วันที่ผ่านมา
  • Ever considered that it isn't the Universe (or universes) the one that is fine-tuned for life, but life the one that constantly fine-tunes itself to adapt to the Universe's conditions, laws, constants, etc? Which could happen samely in whichever universe it might exist, whatever its conditions, laws, constants, etc.? Life is essentially adaptative, and when any form of life can't adapt fast enough, another takes its place. We have seen it and are seeing it now. This hypothesis is like the old Spanish saying: "poner la carreta delante de los bueyes."

    María MartínezMaría Martínez5 วันที่ผ่านมา
  • Someone is running a simulation and we are inside of it. Anyone who has ever ran a computer simulation has played with the parameters until they were satisfied with the end results. Our simulated universe is no different...

    AnnieAnnie5 วันที่ผ่านมา
  • This might be a bit off topic: What if in another universe, time is faster than ours, and u decided to spend some vacation there. Would your body age following that universe's time or ours? Im simply looking for some theory based from facts, its impossible to prove anyway haha

    Makubex GospelMakubex Gospel6 วันที่ผ่านมา
  • Wait a minute. This totally fits in with simulation theory. Think about it: If human scientists want to find out how ant colonies grow under specific conditions, how would they do that? Let's say these scientists don't just want to study any colonies out in the wild - no - they want to observe as many possible different growing conditions as they can imagine. So, what is their solution? They literally create ant colonies in a controlled environment. The colonies will live in a glass box large enough to reasonably fit any ant colony well beyond its extinction (death of the universe). So, what properties would the scientists finetune in all these different colonies? Well, one colony would get rainfall every five days, and another colony every six days. One colony would have soil with 50% sand, and another colony 51%. One colony will experience a forest fire once every 621 days, and another colony every 622 days. It's preaty easy for us to think of many different conditions which could affect the growth and survival of the ant colony. Now, replace the glass box with a universe, replace the ant colonies with life in general, and replace the growth conditions with the cosmological constants. The human scientists are alien species, creating big bangs in many different (simulated) universes, each with slightly differently tuned constants, in order to observe which universes create life and which don't.

    Nemo_KNemo_K7 วันที่ผ่านมา
  • Can we excite the core of geologically inactive planets and thus initiate a terraforming process?

    Guz ManGuz Man7 วันที่ผ่านมา
  • What is "container" for those multiverses? Can one universe interact with other one?

    Sebastian SuśniakSebastian Suśniak9 วันที่ผ่านมา
  • I'm not sure how the fact that the universe is suited for life is in anyway an indicator that there is a multiverse. I mean isn't this thing that we call life just a symptom of the universe. We were created by this universe in which we live so of course it suits us. We are this universe. If there is another universe with other laws of physics it's whole concept of what we call life will be completely different and they'll be suited to laws of physics of that universe. I don't see how there is anything special about our universe just because we are in it.

    nikke10000nikke100009 วันที่ผ่านมา
  • _Man looking displeased:_ Diproton _Man looking pleased:_ Helium-2

    Smerg the DargonSmerg the Dargon9 วันที่ผ่านมา
  • Anyone know what song is played at 3:10?

    ppoint432ppoint43210 วันที่ผ่านมา
  • Could be a single universe, but the constants are slowly shifting.

    Fan JerryFan Jerry10 วันที่ผ่านมา
  • Life is like when I started smoking: by then, the cigarette was no harmful, neither life needed another place to be.

    maxesmartmaxesmart11 วันที่ผ่านมา
  • @PBS Space Time, 4:40, It actually was inevitable for our universe to be capable of life enabling chemistry or else we wouldn't be here and it wouldn't be our universe.

    Eric WhiteEric White11 วันที่ผ่านมา
  • So you're telling me that everything works the way that it does *because* it works the way that it does. And that by changing the way that something works, it would work differently, or not at all? 🤔

    JuicybluntsJuicyblunts11 วันที่ผ่านมา
  • Surely the idea of a finely tuned universe is misleading? This universe may indeed be tuned just right for carbon based life to evolve. So what? If the universe "settings" had been slightly different there would be no life as we know it Jim, but surely with different laws arising from this different universe, life of some other form could arise? Something we wouldn't recofnise as life if we were able to observe it. But nevertheless it would be life in the terms of that universe.

    Brianx WallBrianx Wall12 วันที่ผ่านมา
  • Just think, there is a universe where humanity has created a just and equal world, where Bernie Sanders is president, and where prosperity is based on self-determination instead of greed and environmental destruction. Let’s make this a reality in 2020. Vote for Bernie! 💙

    Andrew ColvinAndrew Colvin12 วันที่ผ่านมา
  • The only thing findtuned is the property of emergence.

    Andrew ColvinAndrew Colvin12 วันที่ผ่านมา
  • Matter was transmuted from high pressures coming from the living primeval dragon, the breath of life came from the dragon, all cycles dark/light, rest/action came from the fire breathing dragon! oO )

    Battle BittenBattle Bitten13 วันที่ผ่านมา
  • Observers are the creators of the universe?

    Jake ElliottJake Elliott13 วันที่ผ่านมา
  • How do you know these dials are free dials or that we just haven't discovered the theory or part of a theory that predicts them?

    Jacks-OverJacks-Over13 วันที่ผ่านมา
  • What are those 20 parameters?? anybody who knows and can enumerate them???

    AIVER SUINGAIVER SUING13 วันที่ผ่านมา
  • The concept of the Multiverse is not going to be the final answer, should we ever be able to determine its existence (looking forward to your further insights on its testability, as you mentioned), simply because we're going to have to answer pretty much the same questions about that as we do about the Universe. If the Universe exists because of the Multiverse, then why does the Multiverse exist? What made *it* such the way it is? Also, I find the concept unsatisfactory, since, if there are an infinite number of Universes, then everything is possible and nothing is special nor or any distinct worth - there an infinite number of Me, most of which no doubt are grumbling away at their keyboards. It makes the meaningfulness of life neglibble, if not altogether zero, at least from a purely physical point of view. As for the first two mentioned hypotheses: that we're in a simulation, or we're the "playthings" of the gods, I think we can lump these together, since they are simply cases of existence (life) having an intelligent origin. While skeptics will obviously baulk at such a notion, I'm not convinced that the Multiverse is in any way more compelling or testable.

    Stephen JonesStephen Jones14 วันที่ผ่านมา
  • Speaking about multiverse but no mention about quantum theory and parallel universes predicted from double split experiment.

    kaveti rakeshkumarkaveti rakeshkumar14 วันที่ผ่านมา
  • hawking radian makes no seance. black holes don"t eject partials!

    Ben JenkinsBen Jenkins14 วันที่ผ่านมา
  • Long live theoretical physics

  • I m so proud tht i m a part of this physics community

  • wait. what. what the fuck? i dont even thought about it

    DjTotemDjTotem15 วันที่ผ่านมา
  • This entire video seems to be a violation of occam's razor and the mediocrity principle. We don't know there is a multiverse, and if there is then there is certainly no evidence that the fundamental constants, parameters, and laws of this universe are not universal for all of them. Trying to wade through the slough of imponderables to get an answer seems to be simply an exercise in interpreting the writings of typewriter monkeys.

    Kurt FitznerKurt Fitzner15 วันที่ผ่านมา
  • what about scenario 4, life is very likely/Inevitable to occur in any universe. It doesnt have to be life as we know it but just the bare bones def of life.

    Onechill BrajOnechill Braj15 วันที่ผ่านมา
  • Aussie Space Jesus knows this because Aussie Space Jesus made the multiverse

    Nemisis025Nemisis02515 วันที่ผ่านมา
  • Hi, nice but it is almost impossible we are alone in the galaxy, there are just way too many planets similar to earth.

    Vivero Bosque de AlimentosVivero Bosque de Alimentos16 วันที่ผ่านมา
  • The metaphysics behind the Multiverse allows for any possible conceivable type of multiverse as such in science that means that the hypothesis is groundless. If something promises everything it actually promises nothing. Many scientists are now giving up on the Multiverse because it promises anything you want and so any question can be answered by the statement 'because the Multiverse did it'. As such -God did it!

    waterbornewaterborne16 วันที่ผ่านมา
  • It is always better to act like the stakes really are that high, just in case.

    Andrii PovkhAndrii Povkh16 วันที่ผ่านมา
  • Why do we assume that the values on the dials can be different (and by definition that there can be universes distinct from ours) but not also assume that the dials themselves can be different (maybe more or less than 20, discrete switches, turtles, etc)?

    GarENt sIrUSGarENt sIrUS16 วันที่ผ่านมา
  • Been waiting a long time for this chanel to cover more of Lee Smolin's ideas. Very exciting. Isn't it possible that the dials aren't actually constants? In that they fluctuate but far too slow for us, and even the present universe, to notice. Maybe the dials just happen to be in a configuration at the moment that makes life possible. It just doesn't seem right to assume that they are constants, even if they seem like it from our perspective of time.

    PontusPontus16 วันที่ผ่านมา
  • I think in a few million years, we will find an advanced life in the galaxy. We would be advanced enough as well as any other intelligent life near our cluster

    Bobby EvansBobby Evans16 วันที่ผ่านมา
  • Well the first and the thirs cause of the finetuning is the same, and this means there is at least 50% chance God exist according to this video.

    KindlyDolsKindlyDols16 วันที่ผ่านมา
    • Hi Andrew, the idea of a god is an eternal being that has been great always. Do you want to discuss for real?

      KindlyDolsKindlyDols12 วันที่ผ่านมา
    • KindlyDols Too bad that explains nothing because that “god” has to be fine tuned to fine tune a universe.

      Andrew ColvinAndrew Colvin12 วันที่ผ่านมา
  • Hey, shouldn't the exponential expansion of space make the inflaton energy density decrease over time?... what follows?... are the big bangs in the bubbles which emerge smaller and smaller over time?

    Fernando LehueFernando Lehue16 วันที่ผ่านมา
    • I mean, less energetic

      Fernando LehueFernando Lehue16 วันที่ผ่านมา
  • In the beginning God created the heavens and the earth. 2Now the earth was formless and void, and darkness was over the surface of the deep. And the Spirit of God was hovering over the surface of the waters. 3And God said, “Let there be light,” and there was light.…

    NWOslaveNWOslave17 วันที่ผ่านมา
  • Just because multiverse explains the constants doesn't prove it though.

    Simon KoetsierSimon Koetsier17 วันที่ผ่านมา
  • I have thought of this exact same thing. I am glad I am not alone in the universe.

    William ThompsonWilliam Thompson17 วันที่ผ่านมา
  • Since we know we’re in a sea of dark matter that doesn’t interact with us (baryonic matter)(but for gravity), could it be considered to be on another dimension? Can you imagine the possibility that there could be a dark matter universe(s) occupying the same space as us?

    sanjuanstevesanjuansteve17 วันที่ผ่านมา
  • Duh what he said. Lol We will one day understand God!

    Major KramerMajor Kramer17 วันที่ผ่านมา
  • LOL ....makes sense....perhaps neiboring univeres must be "off" from order for ours to have some are hotter and some more magnetic ...and that make ours habitable...breath....great video once again!! Thank You!!!!

    Patrick  FitzpatrickPatrick Fitzpatrick17 วันที่ผ่านมา
  • Constants are a way to fill gaps in understanding, similar to using formula from Newtonian physics to get approximation which can be made more accurate using Einsteinian physics replacing assumptions which had previously been made with a better understanding and modelling of the universe, but still it is known that there is something beyond. If what is beyond needs no constants, which is only logical that it shouldn't need them as that would then require some sort of random universe generator of some sort to have existed at some point in time, than there need be no multi-verse. Our universe exists because it could exist and we exist in it because we can. It is akin to one having only a one foot ruler to measure with and so deciding that there needs to be a study of why there exist things that can't accurately be measured by a one foot ruler and extrapolating that to things that don't exist but if they did couldn't be measured with a one foot ruler either, instead of determining that one's means of measurement is limited and work on figuring out what is missing. Algorithms and formula are essentially a measure of one's ability to describe and explain what the algorithms and formula were designed to describe and explain. If "fudge factors" are needed to get to a closer understanding, they are needed, until they aren't. Occam's Razor

    Craig SchultzCraig Schultz17 วันที่ผ่านมา
  • This wasnt really physics tho

    Shaine MaineShaine Maine18 วันที่ผ่านมา
  • This reminds me of a late night discussion at a Trek convention- would the human race have turned out the same if Q had a different personality? Then it hit me: is it still the anthropic principle if the life at the core is not technically anthropoid?

    Joel MonkaJoel Monka18 วันที่ผ่านมา
  • 05;25-05;33 to sh*t eneergy!?!?

    SrmthfgRockLeeSrmthfgRockLee18 วันที่ผ่านมา
  • You have to be extremely ignorant to the belief's of MOST o the planet if you think it's "not controversial" to say the universe can "produce life". Goes to show your bias and blindness.

    deucedeuce22ozdeucedeuce22oz18 วันที่ผ่านมา
  • Maybe the fundamental constants are just artifacts of our theories.

    kapsikapsi18 วันที่ผ่านมา
  • Infinite universes? Occam would object to that.

    Cees TimmermanCees Timmerman18 วันที่ผ่านมา
  • Forever alone...............

    Hamza HamzaHamza Hamza18 วันที่ผ่านมา
  • Duud you said the word GOD finally 2:19

    Hamza HamzaHamza Hamza18 วันที่ผ่านมา
  • If you want to watch the truth. Watch dr. Claudia Albers. Planetary physicist. NASA lies about everything. And they're responsible for this geek.

  • There are no fewer than two potential notions of a Polyvalent Homotopy. A) An ordinary homotopy with a set of inner homotopies. B) A dynamic one whose structure and properties evolve with time. I think this video pops out of option B like a sweet yet carcinogenic tart treat; I'm sure there are some who would consider that interpretation to be a 'cop out'. I just wish we would hurry up and start figuring out "how" things work instead of fretting about "if".

    morgengabe1morgengabe118 วันที่ผ่านมา
  • Maybe the reason the universe continues to expand is there is not enough observers to collapse the wave functions so it's related (insert proper logical expression for 'related' pls) like a watched pot that never boils only it boils with energy because it is not watched. Therefore once enough observers exist, hopefully human clones of myself, lol, we can control the expansion or contraction as is necessary. I also think , probably not alone, that black holes and the big bang are opposite ends of the same thing. We know empty space can generate particles, and black holes create an infinite? Gravity well, and they evaporate by Hawking radiation, (curious how spin would fit in and curious about if our universe is spinning?) but I feel like when a black hole forms enough matter and energy go in to create a new universe with different time physics at least, the evaporate would be the eventual inevitable black death or final burnout or whatever. Let me know if my feeling theories without math hold any water please. :)

    Jeffrey HulseJeffrey Hulse18 วันที่ผ่านมา
  • Why are neutrons neccessary?

    Jeffrey HulseJeffrey Hulse18 วันที่ผ่านมา
  • This episode reminds me of the Walking Dead... Left us on a cliffhanger.

    Barnard RabenoldBarnard Rabenold18 วันที่ผ่านมา
  • Now I see that after-life is possible.

    Samuel AbelaSamuel Abela18 วันที่ผ่านมา
  • I'm not saying that there are no other universes, but the logic behind your initial premise seems flawed. You could easily have only one lucky universe that will support some sort of life. That life could only think about why it exists if that life exists.

    Phillip NunyaPhillip Nunya18 วันที่ผ่านมา
  • Isn't 'c' the speed of one unit of distance per one unit of time?

    starczararstarczarar19 วันที่ผ่านมา
  • No

    mrloopmrloop19 วันที่ผ่านมา
Does Life Need a Multiverse to Exist?