It's interesting how some concepts that are usually not explained make a lot of sense the second you think of time as a physical dimension. Is that why some people are more intuitive than others, because they can sense the future? Is it that people who we call schizophrenic are in fact aware of an alternate reality? Is it that every choice you do not make, also a reality in some universe?
So many questions could be answered if time were a physical dimension.
I like movies that leave you with questions and this one lives up to that.