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Simple: the laws of most physics say you can look at something now and work it backwards. Once it falls into a black hole the previous state of what falls into
by acollins1331 7y ago
Simple: the laws of most physics say you can look at something now and work it backwards. Once it falls into a black hole the previous state of what falls into it isn't able to be derived from working backwards because it just fell into a black hole. This isn't rocket science! (Maybe eventually though)
- mannykannot 7y agoI do not think the issues raised here are so simple that you can answer the question without mentioning entropy, which, at first sight, might appear to show that information loss is routine.
- dchest 7y ago... because it just fell into a black hole That doesn't really explain anything.
- acollins1331 7y agoI said simply!
- danaliv 7y agoI’ve heard this idea a lot and it always strikes me as one of those things that’s technically true but wildly off base. I get that the equations are mathematically reversible. Presumably we’re more interested in the world than we are the math though, and in real life almost nothing can be worked backwards. There’s a lamp on the dresser for example. How did it get there? Go ahead and run the kinematics in reverse and tell me which of the infinite solutions is the truth.