one bright second

Yes, but we don't have proof that universe can't generate new matter. For all we know there is a mechanism in universe not yet observed that can create new matter out of little vacuum and more stars will keep forming.

So technically all we can say is, it's likely that stars will die out in 1000 trillion years.

You should look up Penrose's work in conformal cyclic cosmology.

The short version is this: as the rarified universe becomes massless particles flying in all directions as space expands, it is basically the exact same conditions as the big bang. IE, when the universe fizzles out, from a different reference frame it's still an infinite field of energy expanding out faster and faster.

Just cross out the "distance" part of interactions between particles, without humans or anything with mass really to observe or interact with anything, the relationships between photons are all that matters, and from that perspective it will be the same as the big-bang state. All that's important to look at is the relationships between these particles, the angles between them and probability of them interacting with each other.

IIRC, the current theory is that stars do not move apart, but that space itself expands, which generates the impression that they move apart.

Infinite energy is cheating. Same with travelling backwards in time.

My intuition tells me the universe doesn't allow cheaters.

But then I'm just an evolved bag of water cells clinging onto a clump of rock so what the fuck do I know?

Nah, that's the heavier elements.

I like to watch them when I need a good existential crisis

I saw that pop up as a recommendation the other day but forgot to watch it until you posted that. Cool video! Weird how they come up with this crazy shit.

What if there's cookies?

Eternity would get boring, a few trillion years would give you plenty of time to not miss out on anything life has to offer

Ideally our species survives and manages to send ships away from Earth well before that or you're going to get a really warm summer eventually, followed by sitting on a charred ball of barren, airless rock for the majority of those trillion years.

I suppose you could wish for all genies to be instantly annihilated. Maybe toss the GOP in there for good measure.

Fuck that, I will mess with shit.

"I want all humans to be able to change sex, race or species at will."

"Give every human being the ability to experience what someone else has experienced by pressing a small button on the top of our heads."

"Make volcanoes erupt food. Just endless, nutritious food for everyone."

"Babies are hatched from eggs. I dunno man, seems like it would be silly."

"No more mosquitoes. Replace them with tiny little airplanes that sometimes circle around you and you have to swat them down like king kong."

Spending Eternity either crushed to a point in the heart of black hole or drifting thru the darkness of space all alone with nothing to do or even anything to look at.

conscious energy systems or something

Like Kevin Spacey? Ew.

Seriously, even halfway through my expected lifespan and I'm already seeing a point where I'll be ready to get off the ride. Not in terms of self-harm or depression, but just generally as the decades go on it gets less and less enjoyable in a broad sense.

Our brains absorb too much information and memories than our minds were meant to handle. Our emotions become an annoying liability. Our memories reveal themselves to be these tenuous and bizarre amalgamations of experiences and imagination and cannot be trusted, and maybe most annoying of all is seeing people making the same mistakes around you all the time, and tuning you out for being "old" more and more, determined to fall into the same holes and traps that could be easily avoided, but dragging all of society with them over and over. It takes away a lot of the magic of seeing the future.

Even all that would be something manageable, if I had a loooong life I would probably escape from everyone and just read in the woods or something. But holy shit it has to be alongside physical health because by far the worst, worst, worst thing about getting old is the aches and pains and minor irritations that turn into crippling infections, unhealed strains, and degrading senses.

I am quite positive that something happens after you're dead for an infinity amount of time, no idea what, but it happened before so it stands to reason it may again, and even the slimmest chances become 100% assured after an infinite amount of time.

Just like every Knight praise the sun.

There are four lights.

And if you could live so long it would invalidate basically everything we know of physics. So the long dark wouldn't actually come.

I do like how you haven't ruled it out yet.

No no, it will be over just like a second! Blink for 120 trillion years and you'll miss it.

No! We must be absolutely positively as terse and brief as possible. Concision is the watchword, my friends.

You know, I often find myself coming at from the other direction. Trying not to take life too seriously, because after all in the end, nothing really matters. It matter now, of course. You and I sharing a conversation, matters. Well, as much as a conversion on a social media platform can without one or both of us showing our arseholes. But in the end, the very end, when theres no one left for us to have influenced. We... do that blade runner thing in the rain.

When I was a boy I used to stay at my grandmothers a lot. And it was there that I had my first taste of existential dread. She had this painting of a ship, an old schooner or something(I dont actually know the names of types of ships, so we'll just go with that). It was this ship and it was in the middle of the ocean at night and riding the waves of a storm. And for whatever reason I saw, not only myself in this image, but also the world as a whole. I couldnt really understand what my brain was telling me, but it freaked me out. Seeing this ship in this framed moment of being alone in an endless nothing, and battered by elements with no hope or land in sight. And if the ship sank, no one would ever know it was ever there. It would be lost to time. Our world is that ship. Its alone in the dark, and surrounded on all sides by terrors both known and unknown. And at any moment, it could be dragged down to the depths and never seen again and all that we ever were or ever could be would be lost.

When got a bit older, and I found myself plagued by thoughts of embarrassment, as teenagers at want to do, I would remember that ship. And whatever it was that I wanted to do, I would do because as much as being in the storm terrified me, not steering into it and fighting for every moment would terrify me more. One day I will be at the bottom of that abyss, but right before that, Ill be on a bed. Ill be surrounded by family or I wont, and it will just be a loan nurse whose is tired of constantly fixing my pillows and hearing stories of when I was young, and you didnt need sun block factor 5000. And it will be that quiet moment that regret will get deafeningly loud. And while regret is just unavoidable, the absolute last thing I want to hear myself say is "I wish I had said something.". Ill have a million "I wish I hadnt done that.", and they will all be valid. But at least Ill know that it was the wrong thing, instead of always wondering what could have been. I think that if I took life more seriously, I might not have done anywhere near the amount of things that I did. And while they werent all winners, they were all brilliant moments of life. And as cringe as it can some times be to look back, it was always fun. Although, I probably could have done without seeing a middle aged man jumping out of a wardrobe in crotchless batman outfit... Id say never go home with strange older women in Brighton, but that would really undercut everything else I just said lol.

Life really is terrifying. Which is why you really just have to shit yourself and jump in to get most out of it.

We can't truly know, our math still aims to several couple of extra physical dimensions and we have no other proof of that, our quantum physics show a glimpse of infinite universes and have no way of visiting them, probably ever.

We will die and the universe will continue its course like we never where here to begin with, since a repeat for any other lifeforms past, present and future.

https://bigthink.com/starts-with-a-bang/universe-false-vacuum

Long read, but it should have the answers for all your questions. Have fun! lol.

Not sure about the "restart" bit.

Alternately, no.

A recent discovery might suggest that we happen to be in a big void, and that a great amount of the universe is much much denser than where we are or what we have observed. If true, Big Crunch time bby

Yeah, I suppose after a billion billion billion or so years, it probably would be

And Hawking radiation. Hawking radiation is pretty "dark" for solar-mass scale black holes and up, but it can become relatively very intense for smaller holes.

For the holes we observe astronomically, the things we can see are the accretion disks and the orbits of stars around the black hole.

I mean the period of heat death beyond that. The black holes have to be fed and eventually that matter will dry up. The universe will keep expanding and chasing thermodynamic equilibrium until some maximum point of entropy where every particle is spread out over increasingly vast distances, with such a total loss of interactions between them that temperature across the universe is 0 K. We'd be doing the Alpha Centauri generation ship thing but to find the next electron.

Or imagine it the other way around: The heat death has long started and we live in it. Who knows what kind of civilizations existed in the first quark gluon plasma 10^{-12 to 10}-5 seconds after the big bang? They would have been tiny, fast and highly energetic. There are many orders of magnitude in size more between us and the plank length then between us and the observable universe. There's lots of room down there. To them, we would seem like sluggish giants living off of tiny sparks within the faded light their long dead world set free when the universe became transparent 18,000 years after the big bang.

Oh shit that's true

Typically something a consciousness would say.

Not having consciousness might be the best thing that could happen to a universe. Just everything existing, without desire or suffering.

With a universe that peaceful, there might as well not be us.

If the universe wouldn't exist, you couldn't ask yourself that question. So, by wondering "why is there anything at all" you have already answered the question: because otherwise you couldn't even ask the question.

One minor problem is that life as we know it is supported by the continuous input of energy from a nearby star. Without it, no photosynthesis, and nearly all primary energy production in Earth life comes from that.

The slightly bigger problem is that by the time there are only black holes, there are no planets. Because, you know, there's only black holes. So nothing outside of black holes for life to be on, and the vacuum of space isn't really the most conducive to life or interaction of any kind.

And dig plenty of holes

Highly effective unless the universe really does revolve around you.

Are we talking standard roll or mega roll? 2-ply?

K

Prove it.