The only reason we think of causality as moving forward in time is that we subjectively experience time as flowing in that particular direction.
There's no a prori reason to say that event A causes later event B. It's equally logically possible that B is causing A.
Really though I find it more meaningful to say that directional causality is a hoax and time is a static series of connected relationships.
@starkatt omgomgomgomg have you read "Story Of Your Life" by Ted Chiang? if you haven't I have it and I can give it to you! it is relevant to this discussion. XD
@green I personally don't think sapir-whorf could ever give me wings, but it's damn nice to think about :)