In contrast to this author’s claims:
But I suspect the issue is that the author and I disagree on what makes a person a “sexual predator.”
Feynman did not exactly pretend to be an undergraduate. He was, post-war, a very young professor, comparatively, and describes attending a dance n which he was surprised that every young woman he talked to was keeping away from him after a few minutes. The mystery was solved when one woman said to him that he was a damn liar and walked away – he realized that they all avoided him after he told them (truthfully) that he had been at Los Alamos and helped design the atomic bomb, and they all thought he was bullshitting.
So he tried the reverse tactic: not saying anything about his past, and ended up being befriended by two sophomores who, in his words, we’re both very motherly in advising him he shouldn’t be ashamed of being a freshman at his age, because a lot of guys were starting over on the GI Bill after the war. He then comes clean with them and they are both upset with him for tricking them. He doesn’t sleep with them.
Nothing in either book describes his targeting the wives of male grad students, so I have no idea how to respond to that.
The PUA accusation is the most undefined. According to Feynman, his “technique,” was, “You just ask them.” [to sleep with you]
But even if he did play PUA games, I don’t agree that “sexual predator,” is a fair description. I admit it’s a term that different people can define differently, but I argue that it’s an unreasonably pejorative term to use in Feynman’s case.