Don't know that it is an old episode.
I'd say unless your compass is well attuned and unless you actually go down the rabbit hole it's going to be all those answers all at once.
Discussion
I get the impression the ones that question conventional norms are often made of a different ilk and dance to the beat of their own drums. I actually found what he (Terrence Howard) had to say quite intriguing.
But physics was one of those subjects where I memorized things for a semester and immediately purged my brain of most of it after securing my grade/credits. 👀