My read is that as you fall into black holes time slows down for you, so that the information is preserved by virtue of it never reaching the singularity. Inaccessible, not destroyed. Literally frozen in time. So if you ran time backwards, everything that fell in and red shifted to invisible black, would then blue shift from black to normal visibility as its distance from the singularity increased. This is also compatible with the idea that white holes are time shifted black holes, such that in the future they will become white holes, exploding violently and all the information trapped beyond the event horizon will be exposed by variations in that final explosion. Kinda like how you can tell what something was made of by burning it.
But I do wonder about this notion of information permanence. Seems to me there are plenty of macroscopic events that couldn’t be reversed in the informational sense. Like imagine a 10×10 grid of switches, randomly set to on or off. And now I flip them all off all at once with like a square of wood. Where is that past configuration of switches “stored” in the present all-off configuration? Seems to me like I destroyed that information.
This reminds me of why it’s literally impossible to ever translate some dead languages, or why one time pads are literally unbreakable encryption. It seems obvious to me that some information is clearly destructible. It’s just harder and harder assuming better and better perception of the present. But only to a point and not for all event types. (This is related to chance and free will as well. See below.)
This would also mean that when black holes merge the old data is still there trapped behind the event horizon, presumably never to be retrieved until the distant future when the black holes become white holes and explode.
The problem is, without knowing exactly what’s going on inside, we have no way to tell how or even if this conversion will happen. (Until black holes start exploding.) I suspect it’s related to “initial” mass, kind of like the life cycle of stars. I suspect the bigger a black hole is the further forward in time its white hole stage will be.
We should be able to investigate this with micro black holes at cern. Or maybe there’s already data disproving me (us?) there.
Personally I think it should be a species priority to get into intergalactic space asap. Think, minimum safe distance. We can leave a trail of probes behind us to bucket brigade any material we need from the galaxy.
In any case I predict totally bald black holes. I also predict merged black holes will have the same mass as their parents combined. I assert no mass will be lost for the same reason no information escapes.
I don’t think the information paradox is a real thing. I don’t see any reason to believe data is indestructible, especially if you believe in a universe where “probability” is a real thing. If chance actually exists, then it stands to reason rewinding and replaying the same event, should have a “chance” of having a different outcome. Apparently QM absolutely demands this and the entire universe is probabilistic. That means you aren’t assured of a flawless replay or rewind under any real circumstances. (Unless chance is an illusion. Which I think it is.)
Now, if QM is bullshit (which I think it is, god doesn’t play dice) then maybe information immortality is real. In which case the black hole white hole model above is an even better idea.