, and hence are moving backwards in time in the same way that you are I are moving forwards. So, from our perspective, these people look they are doing everything in reverse, while from their perspective we appear to be moving in reverse.
It is a fascinating premise since we know that, in principle at least, these kinds of processes can be reversed. Our laws are time reversal invariant, which means that, for any process that can occur, the reverse process can also occur. In that respect, at least, the film gets the science right . This is another film that depicts consistent time travel.
The film explores the idea of free will and predestination. John remembers the events from the perspective of being Jane, but despite how painful those moments were, when he travels back as John, he meets Jane and fathers their child, then abandons her. To complicate matters, it turns out the baby that Jane bears is then transported back in time and left at an orphanage, growing up to be Jane . Thus, Jane’s very existence is a causal loop.