Over thirty years ago..
I hope this doesn't come off as rape apologetics, but I was thinking about how much I can remember clearly from 1984-ish. The answer is not a damn thing. I mean, that's why we have statutes of limitations, right? A guy in their twenties is also doing a lot more than a more mature gentleman who may in fact recall distant events more accurately.
Should people making extremely distant claims be subjected to some sort of externally verifiable memory tests? Fumbling a little here
It's not so much a question of faulty memory, I think, and being a woo obviously makes her unreliable if we are talking about cosmology, but we're not. When she ”accused him of telling students they could pass Astronomy 101 if they gave him a blow job,” you would expect others to come forward to back up her claim. Nobody has, apparently.
My guess, based on her own account, is that she made it all up – but not necessarily with ill intent. When I was in college, a student had a mental breakdown and accused a teaching assistant of having impregnated her. This may be a similar story.