Theists: How can predetermined fate and free will coexist?

[Pat Mustard]

So, let's say I build a time machine and then I let it sit for 1 hour before using it.  During that time I leave it in a locked room, completely unobserved.  When the hour is up I open the room, get into the machine and immediately go back in time 1/2 hour and destroy the past time machine I left sitting unobserved.  Would I still win the Nobel?

I'd say you'd be in line for the Nobel in Economics. Except there's no Nobel in Economics.