Just in case the universe does end soon, shouldn't you make sure you're subscribed to my channel before it happens? Click the bell, too, so I can warn you when the end of everything begins. And find me on Twitter and Instagram: @DrJoeHanson/@okaytobesmart
I've subscribed, and I think almost all people who are here NOW have subscribed and pressed the notification bell and that is why they're here after a few seconds of upload.
It's not exactly happening next week, and other phenomena will get us LONG before the sun belches, like HUMONGOUS species ending impactors, unless we obtain the means to detect and deflect something six miles in diameter or larger. They don't come every day, but they often do within a sixty million year cycle. My guess is the human race will wipe itself from the face of the galaxy LONG before that eventuality.
@@catoleg the most reasonable outcome. The universe isn't made out of elastic, and gravity isn't going to suddenly get stronger. The laws of entropy suggested that everything is just going to get tired and fizzle out.
I have a personal theory As heat death happens time ceases to exist any reaction can happen in reverse with equal likelihood This continues for no and infinite time Then the conditions are just right to trigger a Big Bang which could have totally different rules for the universe
*4 ways to end the universe* Ans. Delete button. Ans. Collect infifnity stones. Ans. Write 'universe' in death note. Ans. Anger Lord shiva to do Tandava .
Vacuum decay wouldn't destroy the entire universe, since it only travels at the speed of light, and dark energy is pushing space between galaxies faster than the speed of light. So if a segment of the universe starts vacuum decay then it would only affect the local area of the universe around that point, and shouldn't permeate throughout the entire universe. IMO
@@Meow-dr3pr that's too far to determine considering there are literally 10,000,000,000,000,000,000,000,000 with ATLEAST one of them being better. there is no way this is the best planet unless we are the we are the crux of a simulation(again, very likely with 99.99996% but i doubt we are the main focus.)
“Black holes ain’t as black as they are painted. They are not the eternal prisons they were once thought. Things can get out of a black hole both on the outside and possibly to another universe. So if you feel you are in a black hole, don’t give up-there’s a way out.” --Stephen Hawking
From the common sense, they aren't black either, at least active ones, they are some of the brightest objects in the universe, if not the brightest. Not sure how they compare to supernovas, which are almost instantaneous objects, those put out a few lumens, also. Sometimes more than the entire galaxies in which they reside.
you forgot some... how about : 1) someone shuts power of to the simulation we are in. or 2) the coming of the great white handkerchief. or 3) someone somewhere invents time travel and stops time from happening in the first place
1) So we exist inside the simulation? We are just programs running? Then what does that simulation run inside of? Who created it? 2) I don't know what that is 3) If someone does that, time never existed. So we never experienced any of that. Unless that's assuming all time happens parallel to itself, like a billionth of a second from now and a million years from now are running at the same time, and when time is destroyed, all of the time that each version of ourselves experienced still happened, and ceased to exist.
Recommended reading: "Schild's Ladder" by Greg Egan, which is set in a universe where vacuum decay is actually happening (but expanding at only half of light speed). When they figure out how to "cross" the boundary (... it's complicated) they find that there are new life forms and new civilisations developing within the "bubble."
Aloha. I thought this channel's comment-section/s, if any place, would have smarteristic and smarttastic people. So i wanted to ask your opinion of a Project of mine, trying to help youtube help itself - getting it to become less of what can only be described as 'Messy' without wanting to use hard swearing... P0rn, Racism, Sexism, Scam, Spam-Bots, P0rn-Spam-Bots and much more. Oh, and of course the new Kid in Town: The Covid-Denier/Mask-Hater. All of them are non-subtle (some more than others) and therefore easy to find. I used the reportbutton as it was originally intended; not as Cancel-Culture but to help. Just this week, i got 1 Covid-Denier-Channel (yes, the entire thing, not just 1 video) and 2 Open Racists (Users, not RU-vidrs) removed. And this feels good. No, its not a 'Wonder-Miracle-Solution!!', but who needs that? Do you need that? Yet, i feel confident about this enough to ask: Wanna join the Fun? The helping? Both?
@@Diego-ud3nb There is no proof that your mind could currently accept. It requires a slow process of mental awakening. However, you could begin here, try googling this phrase... "Our universe is a simulation. "
Vacuum decay relies on the standard model bring correct. However, this model only describes only 5% of the universe and is therefore quite possibly false. She mentions this in the book, I believe. And thanks for explaining how it would work. I had not understood that part before!
The problem with that reassurance is that if the Standard Model is wrong, we could all be killed by something else which we have no understanding of whatsoever. Not that we would care.
And also, since the universe itself can expand faster than light, this means that a Vaccuum decay can’t affect the ENTIRE universe, only the OBSERVABLE universe: there will always be pockets of the universe that the Vaccuum decay cannot catch up to, because the fabric of space grows faster than the decay can travel through it
@@spindash64 All we know is that our observable sphere of 'hubble space ' appears to be undergoing a less than uniform expansion at this time....... that is a long way from ' the entire universe is expanding ' !
@@raven7146 Well yes, but when you see in the beginning of the Bible how the first man and woman were made, the Bible says in Genesis 1:26 it says, Let us make man in our own image
That metaphor of the caveman using friction to make fire gave me goosebumps, I stopped the video and tried to imagine our little earth, a rocky planet, being pulled into a black hole by such immense gravitational forces that our precious rock would crumble to pieces and accelerate to speeds unimaginable ultimately shooting out x-ray beams by means of friction. It made me feel small and insignificant
From the standpoint of the universe, we *are* small and insignificant, just some slightly more evolved hairless apes on some insignificant rocky planet somewhere in the milky way, not even advanced enough yet to colonize some planet other than their home world. Who knows what wonderful, but (to us) incomprehensible things are happening right now in other parts of the universe? The universe may or may not be chock full of other species of living creatures that may or may not come into contact with us one day, we absolutely don't know everything there is to know about our universe, we may be barely scratching the surface with the knowledge we already have.
Hi, you don't know me but if you're reading this and have some time to spare, it would be a great help to an existential question that I've been facing for a long time. I think I see a "Great Filter" in front of us in the form of "Reward Death". To understand what I mean by 'Reward Death', we will have to understand the relation between consciousness and reward. Now, for the sake of simplicity, we will divide the human experience into two parts.One deals with the mental capacity of performing actions and the other deals with reward( say reptilian brain. ) One can easily self reflect to realise that all his actions and thoughts are either to propel himself towards more reward positive future or away from some reward negative experience or possibility. This method of reward worked pretty good for all conscious beings that evolution has produced so far. Now, by observing the exponential nature of the increment of adaptability ( or problem solving capacity ) of the living system, that we are a part of. One can easily entertain the possibility of so called “Singularity by ASI”. Assuming you have solved the ‘Alignment Problem’, i.e. you can command it as per you desire. As soon as you get your hands on the device, a very interesting thing will happen and the device will act as a ‘reward hack’. As the basic nature of brain is to shoot for the most reward positive future and avoid any reward negative. Your conscious feeling will have a very little disturbed trajectory towards more and more reward positive state. The more reward positive you feel the more reward positive you want to feel. Eventually leading to reward induced coma like state that is ‘reward death’. This reward death will not be much different than overdosing of opium, cocaine, or any other reward hacking drug. One might think now that he is aware of the fact. He will choose not to go in that direction just like one knows the happiness associated with drugs and yet choose not to take them. But your body don’t feel a natural desire to consume drug thus providing you with a choice. This is not the same case with your natural desires for example SEX. The more sexually aroused you are the more sexually aroused you want to feel and when you hit orgasm your brain breaks the cycle and you return to normal again At the point of organism if you are provided with a choice not to break the cycle.. You will choose to prolong it a little more and then a little more and then a little more... In the condition 'Reward death' your brain will stop the process of thinking and if somebody successfully force out of it you will I want to fall back in it with a urge worst then any addiction case we have faced so far.
In ancient Buddhism, there are only 3 proposed ways ;D But the most common one coincides with the idea that the universe first expands, then stops expanding and then contracts until nothing remains!
@@GauravKumar-qr8pt Budhism got those ideas from Hindu stuff since Budhism originated in India, when Hindu stuff was already established. Original Budhists also believed in all the Hindu gods, just that the state of Budha was something higher that not even gods could easily achieve.
hmm.. rather interesting point here. But this last star in the universe is our final hope perhaps.. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-mmqJaaXd1cM.html
Hey Joe! Biology question: I believe that there are sort of two strategies for animal reproduction. More offspring but less care for them or fewer offspring and more help so they survive. Then I noticed that papayas have huge numbers of seeds but peaches only have one. Is this a version of the same thing? Why such a large difference in the number of seeds?
Peaches don't care for thier young........ the exception to the rule, that you are seeking is the octopus, breeds in very large numbers, ( often only once ) , teaches young nothing, and yet is intelligent, mentally adaptable, and perceptive
what if every expansion and collapsation is just a heartbeatcycle (or inhalationcycle) of an even larger more universal creature? and what we call "dark Energy" is the effect of an ingestion of some stuff from different dimensions into our 4 persieveble ones?...
I love how calm you are about the destruction of everything as we know it. -I have never had more fun learning how everything will cease to be! Could the whole universe end? -Joe: *Smiling* Yes! And it probably will!
I know the Big Crunch isn’t likely but it’s my favorite- it just feels so poetic and nicely symmetrical (and makes the cyclical universe theory easier to imagine)
Every where i go i see damn skibidi toilet you cant escape it. Maybe this is a sign, skibidy toilet is going to end the world. im making up a new conspiracy theory.
@jayvir jadeja That wasn't useful in any way. I've seen plenty of rough estimates, but nothing near the speed of light, and everything I've seen has indicated that there's great uncertainty on the speed of the expansion. If you have better information from a reliable source, I'd love to see it.
Is "Vacumm Decay" "Strange Matter" in steroids? The idea of something so stable that can alter they sorroundings by touch its pretty awesome and scary at the same time, even in comic literature has been showed, on Green Lantern Lore there is a wall around the universe that whatever touch it becomes some kind of stone, not alive nor dead, and in one saga this wall breaks and it's debries floats in the universe transforming full galaxies into that stone by just one particle of it
Ok lets revice strange matter is a type of matter that when comes in contact with matter matter(i say so cause i dont know / just a 12 year old)it changes everything into one of its kind We dont know much about anything Plus you never know if strange matter particals ever collided with the steroids(i hope u ment astroids)we will never know! So yep feels like its a living organisms in space the touches dome thing and that something becomes one of its kind .. its also known as the virus of the universe So death in form of strange matter is not yet confirmed Lol U never know your made of strange matter Anything could be a possibility So according to a person who is not an astronomer yet the answer will not be there as enough data is not known to us
I honestly think the Big Rip sounds like the coolest option. We've already lived in this reality, why not move on to something new? New dimensions, elements, and existences we can't even imagine. What's the fun of existence if you never see anything new.
Another theory: Black, and homosexual priest with his reverse centaur accelerating the universe to the point where it ends and gets rewritten in his vampiric boyfriend’s vision.
"I don't want to alarm you but the world is going to end" Dude, it's 2020. The end doesn't alarm us, we've been expecting the apocalypse to happen for like 4 months now
If our big bang will one day reverse and then explode again to create a new big bang, does that mean that there were other big changes that happened in the past way before our big bang exploded and created our universe?
Pretty much have been stuck on the multi verse theory. Even before I knew the official name. But yea... almost certain there are infinite universes with different physics. As a result our universe is always expanding because our physics is essentially expanding. However, once matter has separated far enough apart, well... those physics can eventually evolve and isolate themselves from each other and evolve into new realities. Okay I'm done w/ my crackpot theory. >_>
If the universe did eventually collapse upon itself, then maybe another Big Bang happens after that? Maybe there have been multiple Big Bangs and Big Crunches in the past with each one opening up the possibility for life. Interesting
*Do you know what i think why every galaxy is getting farther but Andromeda is coming close* Because we are not the centre of universe and we are going farther from centre much faster than Andromeda. That's why "we" are getting close to it not Andromeda. And also then gravity starts its play. As big bang's strength is not ganna weak that fast. *Am I correct* ?
a billion years might be enough time for mankind (or the AI that inevitably destroys us, if something else doesn't do it first) to figure out a way to postpone entropy forever. who knows maybe if the universe is cyclical, it would find a way to persist into the next universe
Yup! Any day the universe will prove theory of gravity wrong and I’ll just float off! Lol And while were all it, since we’re assigned a consciousness to the non-sentient universe me and the universe are going to meet at 3pm and catch up, talk about their new car. Lol
You could have included strange matter into this as another way to end the universe. As far as I understand, it's a very stable form of matter and turns all matter it touches also into strange matter. Another light speed kind of annihilation.
Strange matter could not destroy the universe, though. It could destroy almost anything it touches and make it more strange matter, but the universe is so empty it could never touch anything else, ir get swallowed by a black hole. Or just degenerate. Is not an existencial risk.
I've heard that the heat death could potentially take even trillions of years before the universe is truly void of all heat and energy and star formation ends. And also it's possible that a sufficiently advanced civilization could theoretically exist even post heat death. There would still be matter and rogue planets and such floating around in the cold, empty nothingness that could potentially be used to sustain advanced life. It's such an unfathomable amount of time either way that none of this bothers me. Always interesting though!
Well, one of the theories now raises the question of "has there ever been only one Big Bang?" And if yes, will the continuum ever reach a stage where too much energy is dissipated in heat to ever create more baryonic matter to sustain the material, perceivable world?
Awesome as always! One thing I don't understand, though, is how can the universe be expanding faster than the speed of light? I thought nothing could go faster than light in a vacuum
@@besmart Bro I know I'm dumb but why the expansion is not ripping galaxies? I know the stars' gravitational force is keeping them and overcome the expansion but if the expansion is accelerating then wouldn't there be a point in time where the gravity of stars is not enough to keep them together? Sorry if this is dumb
@@WinterNox Because the local expansion, even on a galactically sized dimensions, is not significant. You only see high expansion rates when you look at scales FAR larger than that. To get to superluminal expansion, relative to the Earth, you have to travel out about 13.7 billion light years. Those stars are 'currently' about 64 billion light years away and permanently removed from our existence.
8:54: wait a minute. You said that parts of the universe already are expanding faster than light can travel. That means that the Vaccuum decay is ALSO unable to travel faster than the universe’s expansion at its extremes. Therefore, it is essentially impossible for Vaccuum decay to destroy the whole universe: there will always be pockets moving away from the shockwave faster than the shockwave can approach. Of course, that doesn’t mean WE specifically are always safe, but it does mean that a singular Vaccuum decay event isn’t guaranteed to wipe out all life
