Originally posted by GolubOr the real topic might be: Is any move; not analyzed throughout (for how many moves might that be), based on psychological parameters? Probably, if that is what is meant by psychology. If we mean that "psychology is anything that a computer does not do", then the answer is obvious; yes. And since we are humans playing, and since we do have other operating parameters; the logical answers is the same; yes.
[b]I guess the real topic is: Should you make an "inferior" move just because your opponent dislikes it or for whatever psychological reason you have? I think it's quite obvious that psychology exists in chess as everywhere else, no question about that.
So psychological factors does matters.
If Mr Fischer said he did not believe in it, has to be his case. He was wrong.
But he was right when he that "he believes in good moves".