MOC: [[Mental Models|Mental Models]] *** The idea is basically that if you benefit from an interest rate on any unit, reinvesting the benefits will compound over time toward exponential and extraordinary results. A simple formula is: 1 unit compounding for 50 years at 10% yearly interest rate will equal to 117 units in the end. This notion comes from the world of finance but can be applied widely: - Social relationships - the more you have, the more you get from your 3rd circle - Physical health - working out allows you to reap compounding rewards - Learning - the more knowledgeable you become, the more connections you can make => This last point connects to [[Memory and the brain]] as making new connections is key to remembering and use units of knowledge => [[How to build huge social impact]]