Remember in the movie Good Will Hunting, that Matt Damon was effectively the “smartest man in the world..” but he hadn’t actually done or experienced things first hand.  Therefore, even though he knew a boat-load about lots of things, he didn’t actually know shit about them.

The same holds true for things in everyday life.  You can know a lot about financial analysis and models, but if you haven’t built one…  You can come up with great marketing ideas or sales plans, but if you haven’t been on the sales calls or run a marketing campaign…  You can ride with a group of cyclists at “race pace”, but if you haven’t entered a real race…

The point is: get in the game if you really want to understand how it works.