alt Hacker News> absolute order requires very precise time synchronization which is hard
Presumably relativity is the reason precise time synchronization (and thus absolute ordering) is hard.
> absolute order requires very precise time synchronization which is hard
Presumably relativity is the reason precise time synchronization (and thus absolute ordering) is hard.
That forms a basis for the difficulty. But then there's additional layers of difficulty in real networks where the path between nodes is often asymmetric, and you may also observe that elapsed time (A -> B -> A) is sometimes greater than elapsed time (A -> C -> B -> C -> A) or (A -> C -> B -> A) or (A -> B -> C -> A)