If you truly don't have competition, then zoom out until you can define some. Competition can be as simple as the reliance on the status quo, Microsoft (since at some point Microsoft will compete with everyone for everything), or researchers in universities. Pick something, because saying you have no competition at all is a nonstarter.

Original visions are often wrong. Companies have to morph as they learn what customers don't want.

For startups, SM is now crucial: it has never been cheaper and easier to reach one's customers. Entrepreneurs should thank God for Twitter, Facebook.

Sales fixes everything.

At the end of my life, is it better to say that I empowered people to make great stuff, or that I died with a net worth of $10 billion? Obviously I'm picking the former, although I would not mind both.

Happiness is temporary and fleeting. ... Joy is the right goal.

I would consider...Google Plus a push technology. It's closer to Twitter than to Facebook.