In a way Feynman was also the 3b1b of his generation. He was very good at coming up with and communicating with visual metaphors. To the laypeople at the receiv

In a way Feynman was also the 3b1b of his generation. He was very good at coming up with and communicating with visual metaphors. To the laypeople at the receiving end, these give a strong illusion of understanding. That's ok if you are not going to compute or design or build anything with it. But they are very inadequate when it is time to shut up and compute. Feynman (and I am sure) Grant Sanderson could/can operate at a virtuoso level at both the visual imagery and the compute layers. But their popularity with the masses is because of the visual imagery they could conjure up. On the other hand for those who can already compute for themselves, the metaphors can be a big help for building intuition as long they think in the same style.