Since 1917 we have known that gravity is a peculiar type of "force" in that two objects in empty space moving with respect to each other will never attract and come together unless their initial trajectories were such as to force that. Instead,they both serenely circle each other most of the time in ellipses in which they smoothly accelerate towards or away from each other.GR is best understood as a description of motion and geodesics always were the pathway of motion with minimal or no expenediture of energy, even though velocities and momentum could change quite spectacularly.
Most interestingly, an astronaut crusing along a curvilinear geodesic experiences no accelerations even though his/her velocity and direction of travel changes constantly.
In extreme elliptical orbits we find that naked singularities can arise which do not have event horizons. In the classic black hole, the event horizon does arise but many folks conjecture that an astronaut nearing it may appear from far outside the system to be torn apart by tidal forces and smeared out but to the astronaut all his parts retain the same perceived relationship to each other and everything is normal. This is similar to his/her observations during the elliptical accelerations, which is that he/she does not report feeling accelerated at all.
Always the reality we see does not allow any object to "fall" into another unless an exactly equivalent amount of mass/energy speeds away. No rogue star is ejected from a galactic center without else being forced down to the event horizon of a black hole. Hawking famously pondered whether particle/anti-particle pairs appearing virtually out of the cosmic foam could so diverge and if half of the info of that pair would then be lost.
So what is information? Humpty Dumpty lies on the floor and I can neither guess what happened to him nor put the remnants back together because too much info was lost when a lazy cosmic housekeeper did a half-baked job of cleaning up the mess.
However, if it was perfectly half of a mess and if the half of what remains exactly duplicates the missing material and indeed is still joined to it even up to an infinite distance in a spooky QM sense, has info really been erased? It still has a perfect duplicate, after all. I have always wondered if in an 11 dimensional universe we may have two objects that are separated in our common four dimensions but exactly the same point in the other 7, if other influences can leak across the dimensions the way Lisa Randall's gravity does? When does a leaking influence become a hidden variable?
