IF causality can go both directions in time, and a future event can cause an event in the past/present, what would that look like? I imagine it would look like random processes coming together to make a result, like its antecedents were being arranged.

If one were to take a deck of cards and shuffle them, it wouldn't matter _unless_ they influenced the reader to bring about the future event in some way.

Therefore, divination with cards or other random things would work but only for believers.

I'm not saying it is this way, it's just fun to think about.

This divination would obviously only work if the reader were in the critical path of a predestined event. So it might detail your job and love life but not the covid-19 pandemic. Unless, of course, you're that lucky person who was critical to it happening and it was actually predestined and not just one of those things that happens.

What makes a thing predestined? Well, something with a lot of energy. Lots of dying or loving or both. Crazy coincidences seem to happen the most when people meet and have children later. Magicians can unhinge themselves sufficiently to imbue a desired future with enough energy to make it self-causing.