Superposed_Cat said:
The point of this thread was for me to try understand information conservation inside black holes and why hawking radiation doesn't solve black hole information paradox
I suggest you talk about "inside the event horizon" and "outside the event horizon".
If you dropped into a black hole, you would not be impressed with the event horizon at all. Chances are you would be destroyed before you reached it or you would pass through it without noticing. So it's not synonymous with "black hole".
On the other hand, from outside the black hole, the event horizon is as far as you can see. Anything approaching the black hole will asymptotically approach a moment in time when time freezes. Nothing that happens on the other side of the horizon has any obvious bearing on the outside world.
Hawking Radiation, a feature of event horizons, was once described as purely random - created by particle pairs splitting just above the horizon with one of the pair managing to escape while the other dropped back to the horizon. Now it is most often described as not entirely random. Instead, the event horizon is plastered with the blended time-frozen holograms of everything that has ever dropped through the horizon and it is this holographic surface that is involved in "deciding" what particle pair evaporation takes place. So it's not random - just inscrutably complex.
As for whether there really are any particle pairs, there probably is a better way to describe it, but it's good enough for me.
Event horizons are not specific to black holes. If you accelerate continuously in one direction, you will leave an event horizon in your wake - although it may be trailing you at quite some distance. That event horizon will have the same properties as the black hole event horizon. So at this very moment, you are probably passing through the event horizon from the perspective of some accelerating particle somewhere in this universe.