A painting is never finished. You just stop working on it.” This idea will be familiar to anyone who has worked on software. - Paul Graham

Startups are not just something that happened in Silicon Valley in the last couple decades. Since it became possible to get rich by creating wealth, everyone who has done it has used essentially the same recipe: measurement and leverage, where measurement comes from working with a small group, and leverage from developing new techniques. The recipe was the same in Florence in 1200 as it is in Santa Clara today.

Naturally wealth had a bad reputation. Two things changed. The first was the rule of law. For most of the world’s history, if you did somehow accumulate a fortune, the ruler or his henchmen would find a way to steal it. But in medieval Europe something new happened. A new class of merchants and manufacturers began to collect in towns.10 Together they were able to withstand the local feudal lord.

We arrive at adulthood with a kind of truth debt. We were told a lot of lies to get us (and our parents) through our childhood. Some may have been necessary. Some probably weren’t. But we all arrive at adulthood with heads full of lies.

There’s never a point where the adults sit you down and explain all the lies they told you. They’ve forgotten most of them. So if you’re going to clear these lies out of your head, you’re going to have to do it yourself.

Few do. [...] You probably never can completely undo the effects of lies you were told as a kid, but it’s worth trying.