what do "forwards" and "backwards" even mean in this context? it's just a convention, from making an analogy to walking along, or something. But we can only "see" (i.e. remember) the past, so we're facing the opposite way to our direction of travel anyway.
I've thought before that the Universe might actually be defined with its boundary conditions at the end rather than the beginning, it could kind of makes sense of Quantum Mechanics. Instead of an event having two or more possible consequences and you can't predict which, you'd have two or more situations that lead to the same consequence. So that way round, there's no randomness at all, it's all entirely deterministic.
