1. There's a
huge difference between the Geller and the psychology student, the former does lack the integrity but you can't talk of "abuse of integrity" for the student, because (i) she was doing things in the prescribed way (unless, of course, you're ready to say almost all psychology departments (and most other humanities, too) are guilty of the same sin, and (ii) even if she did want to do a better experiment, in general it's not obvious how to do it in most cases in such disciplines. The point about putting the rat maze in sand is far-fetched (how many of us took such precautions in our PhD experiments). My point is that there's absolutely no comparison between Geller and his ilk and the student. Feynman is beating up on psychology here, I think, because it's not as rigorous as physics.
3. I think you missed my point here, based on your mentions of "same people" , "integrity", etc. Many, many approaches have been used to solve the education problem in the US in the past 40 years, some quite innovative, and not by the same people either. People from outside the field, like Feynman or more recently Bill Gates, think that the problem is just a case of idiots doing the same old thing, once you bring about the better methods, "integrity" (in this case perhaps may refer to teacher's ratings) and money, the problem may be solved relatively easily. As we have seen, that is not the case, because although the above sentiments contain most of the truth, there are other factors affecting the problem, too. The point is, unless you can attack all the factors at once, you won't be able to solve such deep sociological problems, which is why these require scientific++ approaches.
As for your tone, why not try to be a little more humble, rather than "makes no sense", "semi-solid" etc., why not "I didn't understand", even if the argument does suck.
