Anybody seen that movie Primer?

I thought it was really cool, but they kind of lost me towards the end where they're listening to recordings of themselves in headphones.

If I could go back in time, I don't think I'd do anything that would change my life right now. I wouldn't want to change anything that would cause me to lose my kids, or my wife, or have a different relationship with them. I think I'd try to do something where I could set up some sort of financial windfall - that would happen tomorrow.