I spend a lot of time urging Silicon Valley entrepreneurs to forget about disruption, and instead to work on stuff that matters. What do I mean by that? There are a number of litmus tests that I’ve learned by watching innovators in science and in open source software and the Internet, and that I try to pass on to young entrepreneurs. Here’s what I like to tell them. 1. WORK ON SOMETHING THAT MATTERS TO YOU MORE THAN MONEY.

