I'm not a biologist so you make a good point, I can't give specific examples of how Smith's ideas are falsifiable. However, I do know that when I read other books by anthropologists who analyze Late Pleistocene human behavior (e.g., Christopher Boehm) or books on game theory and animal/human behavior they always cite Smith's work and I've read other things on information in biology that cites Smith's paper. In both cases that's why I read them because I kept seeing them cited so often.

As for philosophy and pseudoscience. I guess I am harsh because I see much (not all) of modern philosophy as pseudoscience. I have a thread in another group meant for longer discussions (I think it is /askphilosophy) where I raised this issue and tried to explain my ideas but I gave up because it seemed no one was really understanding what I was trying to say. Either because what I said wasn't clear or because it challenges some of the assumptions that many modern philosophers take for granted and don't want to give up. I would like to think it's the latter but of course I would think that.