The strategy of Tumblr is very elegant.. The atomic unit of user experience is the same as the ads.

We need new medical approaches to preventing and/or curing disease. We need new scientific approaches to generating, storing, and being more efficient with energy. Maybe we need more space exploration. Maybe we need more undersea exploration.

Building product is not about having a large team to manage. It is about having a small team with the right people on it.

I don't like to talk about myself. I like to talk about stuff that's happening, stuff that's going to happen, and the people who are going to make it happen.

I also like to use a sensational headline. Many people read blogs in aggregators, which generally show only the headline. So you have to give people a reason to click through. Blogs need to be real and personal. Reading it should be like hanging out with you. I play music for my readers. I show them videos I like. I tell them what I did over the weekend. And I tell them what is happening in the technology, Internet, and VC markets.

Given New York City's cultural diversity, it has always attracted creative people.

The entire world is now a rival to Silicon Valley. No country, state, region, nor city has a lock on innovation in technology anymore.