7 ms·
Yes.
by soylentcola 7y ago
Yes.
- lostmsu 7y agoNot necessarily. All apparent casual connections are just an artifact of the timeflow, which on its own might be nothing but a consequence of a particular coordinate choice.
- AnimalMuppet 7y agoIf I understand you correctly, the timeflow would be different with a different coordinate choice. That can't be right - the physical results would be different simply because of a coordinate choice.
- lostmsu 7y agoThe physical results might be the same. Imagine your universe is that of an empty 2D plane with a single unit circle in it and you use euclidean metric, but 1 of 2 coordinates you experience as time. From your perspective the life of the matter in that universe starts at T0 as a point, then grows to a line of length 2, then shrinks back to a point. Now there might even be a "physical law", describing the evolution of that line as "time" goes (and I am sure there is a simple one), that has "cause" and "effect". But in the end no matter which direction you choose as "time", the law is the same. Now I leave the question of how can you exist in this universe open (or rather obviously impossible in any meaningful sense), but there might be other more complex constructs, that permit "intelligence" along a certain dimension, and it is another question whether our universe is one of these.