My mindset is of the person who is still unsure whether they have enough money in their ATM to go to another bar. I lived that way when I was unemployed, when I was a snowboard instructor, and when I was at NYU. A lot of my personality is stuck in those five years, and I don't know if that's ever gonna change.
Forget about where you want to be and go out and build stuff. Dodgeball came from being bored at work... things happen because you make them happen. Stop sketching, and start building.
It's difficult to build services that are supposed to scale to, you know, 30, 50, 100 million users right off the bat because they got to be kind of tailored down; by definition, they have to be a little bit generic to speak to that large of an audience.
Facebook is about sharing experiences that you've had. Foursquare is more about the present tense and the future tense.
Whatever way that we have in our head that we expect people to use a software, they'll find other interesting ways to use it that we didn't expect.
I can think of the number of people who were like, 'I will never get a cellphone because I don't want people calling me all the time. And I will never get on Facebook because I don't want to share that stuff with people. And Twitter, that's not for me.' And this is just the natural progression of things.