alt Hacker NewsI am aware of no case where it clearly made an advance prediction of any behavior that later turned out to be true.
I'm aware of quite a few where they managed to "predict" something we already knew.
That said, they've made so many "predictions" that I'm sure that some likely worked out by sheer coincidence.
Oh, yes, I meant predict a value we had already measured at the time the "prediction" was made. I should have made that clear in my original comment. I would add it now except that the editing time has run out. Maybe I should have said "postdicted".
Actually, I think the value might have been something like, the electron mass? Or something like that. (Which, obviously, had been measured before string theory made a "prediction" of it.)