True, but like the VC model with companies, it's very difficult to consistently identify those people in advance. Invest in a load of qualified, promising individuals and hope more than a few "hit".

The desire to do something and understand something is the root of everything, and who are to preemptively decide who has that capability? What a pompous thing to say. On top of that you are operating on the assumption that it matters. If someone wants to learn, they should be able to learn. I guarantee you that we as a society have stifled people who would be this generations Einstein so to speak.