they say the universe eventually will reach max entropy and then nothing will happen anymore cause no more differential in energy potential...
But what will happen to black holes? To reach max entropy, there can't be black holes else there would be potential differences in terms of gravity and stuff.
So what will happen to black holes before max entropy?
@daughterofrao black holes aren't permanent, they lose energy over time via Hawking radiation
@noiob how can that radiation cross the event horizon from inside the event horizon?
@daughterofrao it doesn't, it's created outside of the event horizon by matter/antimatter fields collapsing (or sth like that)
@daughterofrao the energy that creates the radiation comes from the black hole, which is why it's slowly losing mass
or so Hawking theorized, it's a bit hard to check
@daughterofrao I'm reaching the edge of my understanding of quantum physics here
@daughterofrao @noiob https://en.wikipedia.org/wiki/Hawking_radiation here you go ^^ black hole slowly evaporates, and I guess eventually when it's very small it becomes unstable and stops being a black hole
@maze ii know how touse wikipedia, but i don't understand its content!
@daughterofrao My understanding is, a pair of quantum particles spontaneously spawn at the event horizon and get separated, one falls into the hole, the other escapes. This way, the black hole has emited energy/mass - and according to the laws of conservation, it must become smaller. This is hinging on our understanding of physics being generalizable.
@maze yes... but nothing can move faster than light, right?
so how does this energy which causes those particles to spawn leave the event horizon? it would have to travel faster than light to do so!
@noiob hm... what happens in the moment the singularity/event horizon disappears? 🤔
also... how does this energy leave the black hole?
Like... this energy, in what ever form it is, would have to propagate faster than light to make it out, right?