While I agree about the great value of exchanging ideas for the humankind progress, there is something wrong about presenting things in such an "easy" way - sex between ideas, rational collective intelligence, etc.<p>For Galileo, Columbus, J.Bruno, Einstein, and others, it wasn't about nice intellectual discources with their contemporaries about great ideas - it was a struggle for their ideas to survive, though they themselves might perish in it. Although they were right, as we all know for sure now.<p>"If it's really a good idea, you'd have to hammer it down people's throat" -- Ken Iverson, the inventor of APL (The quote might not be exact, but the idea is ;)