Simple, clear purpose and principles give rise to complex and intelligent behavior. Complex rules and regulations give rise to simple and stupid behavior.
-Dee Hock
The better the investor, the simpler the questions. When I started, I was obsessed with jargon, complex questions and spreadsheets. Now I ask things like “what does it do?”, “why do people buy it?”, and “why are you selling?”. And I never do more math than I can fit on a napkin.