Haha, I'm pretty paranoid when it comes to trusting others, but I guess I should include that in my wish just in case.
What if the truth isn't what you expected? What if God really does exist? Would you turn religious and attempt to convert as many people as possible?
And what would you do if you learned that He doesn't exist? Would you remain neutral, or would you seek to abolish religions?
Problem is, not everyone will take you seriously.
I think some things are better left unknown.
So you want to leave a mark in history, huh? Personally, I don't care for such things, but it doesn't bother me if someone else does.