I hate to break it to you all, but I am about 99.99% sure that everything is pre-determined. If you believe in the big bang, then you basically have to agree with me. Here's why:
The big bang released/produced huge amounts of mass and energy that were all interacting with each other, and continue to interact to this day, based on various forces, such as EM, gravity, nuclear, etc.
SO, if you had an infinitely powerful computer and infinitely powerful sensor at the moment after the big bang, you could read those forces, and in theory, you could predict/foretell that I would be writing this today.
If I am wrong, plse explain.