If I didn't believe in rooting for founders and investing in founders, I'd be a bit of a hypocrite.

We all have great ideas. No one ever says, "I've got this terrible idea."

The best part of being an angel investor is seeing these kids coming up with companies that get way more traffic than Reddit had when we sold it. I think, 'Are you kidding me? They're just kids, and they've done so much.

Hundreds of these companies I've seen since the beginning stages - including Dropbox and Airbnb - one of them has actually been crushed by an incumbent. The Googles, the Twitters, the Facebooks, they might be someone to acquire you, which is not necessarily a bad position to be in.

Raise $500 for a thing you care about because you actually get the experience of taking an idea and actually doing it. There are fewer and fewer excuses not to.

Being effective at social media, whether for business or personal use, means capturing people who have short attention spans. They're only a click away from a picture of a funny cat, so you have to make your thing more compelling than that cat. And that can be a high bar.

Obviously solving the education problem is big and complex, and there's already so many failings, but coding is the new fluency. This is the most valuable skill of this century. If you want to be a founder of a company, and not even just a tech company, but like a founder of a company, because I'm telling you software is going to play a role.