It's a classic: you've got a predestination problem. You've got a choice to make, but it's all been predetermined, you say?
Predestination Problems: Solution 2, the more you know, the less you can do.
Or perhaps you'd like to try the Predestination Problems: Solution 3, where the choices are just as fake as the free will.
Or, if you're feeling particularly masochistic, you can try Predestination Problems: Solution 4, where every option leads you back to the same, predetermined fate.
And, if you're really stuck, just ask Predestination Problems: Solution 5, where it's not just your choices that are fixed, but also the questions.
Or, if all else fails, try Predestination Problems: Solution 6, where it's not just the answers, but the questions that are predetermined too.
More Predestination Problems for those who can't get enough.
Frequently Asked Questions about the nature of time and free will, because who doesn't love a good existential crisis?