Fine Tuning Principle: Devastating Disproof and Scientific Refutation of Atheism.

[Mister Agenda]

Free will also resolves the question of why we feel that when we make a choice, we could have chosen otherwise.

Not even a two-way time machine could resolve that question, because the act of seeing what you would have chosen to do on one timeline then becomes yet another outside influence in what you eventually, in fact, choose to do on your own timeline.

The intuitive answer to the question is that we feel that way becasuse we actually could have, but that's just taking the feeling at face value.
The time travel angle is interesting.