The advice given to people who just build stuff would be "don't just build stuff, also study the theory behind". You need the former to become a useful craftsma

The advice given to people who just build stuff would be "don't just build stuff, also study the theory behind". You need the former to become a useful craftsman, but supplemented with the latter you will become a master craftsman. You'll be able to quickly recognize patterns when reasoning about problems. It will allow you to quickly and almost instinctively orient yourself toward optimal solutions.