Prometheus 6

That may seem like a weird question, but it's an important one. How LONG is "now"...does that make it clearer?

Didn't think so.

Technically there's no such thing as now. It's like the point at which possibility (which doesn't exist yet) collapses into events and pass away. Future and past don't exist, now is too transitory to identify. So we work in a window of time: intelligence grasping possibilities, perception passing the moment into memory; functionally, 'now' is this joining of intelligence, perception and memory and the size of your 'now' is determined by how much intelligence and memory you invoke.