Suspect that both Buffet and Paul’s real methods rely heavily on instinct, context, relationship networks, combination potentials, personality and pattern matching which can’t be fully documented or quantified or imparted.
I remember having a conversation with my brother once about a protein powder being recommended by some bodybuilder or another. His response: “Yes, he says that he looks that way because of this powder, but what does he actually do?” Answer: Steroids.
Suspect the same is true of many great success stories in business.