Here’s another free e-book which TDG readers may be interested in – God’s Debris, by Scott Adams (the creator of Dilbert):
Imagine that you meet a very old man who—you eventually realize—knows literally everything. Imagine that he explains for you the great mysteries of life—quantum physics, evolution, God, gravity, light, psychic phenomenon, and probability—in a way so simple, so novel, and so compelling that it all fits together and makes perfect sense. What does it feel like to suddenly understand everything? God’s Debris isn’t the final answer to the Big Questions. But it might be the most compelling vision of reality you will ever read. The thought experiment is this: Try to figure out what’s wrong with the old man’s explanation of reality. Share the book with your smart friends then discuss it later while enjoying a beverage.
I submit it here on the basis that Adams says “The target audience for God’s Debris is people who enjoy having their brains spun around inside their skulls.” Certainly sounds like you guys to me (link found via Clifford Pickover’s new blog ‘Godlorica’, which is worth checking out itself).