This seems kind of pointless, most people already are the best in the world at some specific combination of skills - knowledge of local geography, ability to co

This seems kind of pointless, most people already are the best in the world at some specific combination of skills - knowledge of local geography, ability to cook a certain set of meals, etc. Anyway, a related thought that I find interesting: Becoming a "polymath" i.e. learning a wide range of topics to reasonable depth requires less effort than most people expect. For example, let's say you want to learn mathematics, physics, chemistry, biology and economics. I think that achieving 80% of undergrad knowledge would take much less than 80% of the time that people need to complete an undergrad degree. So let's say it could take a year to acquire a good foundation in each of these topics if you try to optimize the process by focusing on fundamentals and core principles, choosing the best books, etc.