I'm an engineer, so am satisfied with practical answers. I don't need 100% proof, just as I know I can't design a 100% foolproof computer, only a pretty good one. My life has turned out pretty well, and at times my beliefs have saved me from getting into trouble. So it's a good working assumption for me that God is real. As far as my Christianity, I see God as the best explanation for the Resurrection. Second best explanation would be visitors from the future, or aliens, but even if that were true, it would be worthy of my respect.