Just a general topic here. Hope I don't offend anyone. Curious to see what everyone else thinks about this. I read Lee Smolin's 'Trouble with Physics' a certain amount of time ago and found myself agreeing with him in many respects. Correct me if I'm wrong, but is the physics community as divide as Lee depicts? He makes it sound like 90% of physicists these days get their doctorate in some advanced String Theory field that lacks any sort of physical observational evidence. I also more recently read Feynman's books (I forget which one as I've read the majority of his works) and he seems to come from the opposite end of the spectrum in many respects. He believes in 'Shut up and Calculate, don't ask why' type of physics, as his book quotes himself. He also goes on to explain how it takes 8 years of drawing lines in graduate school until students are ready to fully solve QM problems. I really enjoy Feynman's works and ideas and think he is one of the top physicists we've seen in a while but have to completely disagree with him on the whole 'Shut up and Calculate' idea. I mean if Einstein or Newton or Galileo were drawing lines to work their way up the QM problem solving tree until they were 30, would they have come up with their intuitive thought experiments that led to the fundamental world changing theories we use today? I tend to think not. Feel free to agree or disagree or disregard.