Thanks for the welcome! :) You're right, so many great conversations taking place here! I feel like I'm going to be doing a LOT more reading before I really post anywhere else, but I look forward to lurking too.

I guess when I think about nihilism, I don't necessarily think about strict materialism. That's an interesting point about logic being mind-independent though. I guess I just think about the simple definition of nihilism as meaninglessness. All my life, the "meaning" of life had come from Jesus, which in my mind, meant a relationship with God and eternity in heaven. Now, there's no afterlife. Is there still meaning? Do I even care what happens after I die? I think I do, but why? I could just go out and do more good than bad and enjoy my meaningless days under the sun; is it really worth the mental energy to think about all this stuff, and if so, why? I'm realizing one thing people love about Christianity is how easy it is, once you can get past the whole childlike faith thing.