We've got some great big problems in our world. We have to figure out how to feed 10 billion people. Too many people can't access clean water, quality healthcare, and reasonable education. We have to figure out what to do about climate change, income inequality, and more. Innovators need to rise to the challenge!

Companies get into grooves and they keep sharpening what they are doing, when in fact what they really need to do sometimes is to stop and do something completely differently.

Anything that has low certainty or has a lot of impact should be tested early.

Document, evaluate, focus, test.

I think it is only in hindsight that you can determine whether something is a mistake or not.

First you document your idea. You should be comprehensive, but that doesn't mean you have to produce a doctoral thesis length plan. Rather you want to make sure you have touched all the different things that have to happen to succeed. Then, you evaluate your approach. The goal here isn't to figure out if your idea is good or bad, but rather to begin to figure out what are some of its weakest elements.

Why do people do crossword puzzles? There's no reward for completing one, but some people just like the challenge.