If you're a technology investor, and you decide that you're also going to be a healthcare investor or a green-tech investor, that doesn't usually work out that well. There are reasons why people make their careers studying these things and becoming experts.

There are environmental threats to health; there are internal threats to health - genetic conditions, viral threats, diseases like cancer and Parkinson's. And then there are societal and global ones, like poverty and lack of nutrition. And unknown viral threats - everything from a new kind of influenza to hemorrhagic fever.

There are environmental threats to health; there are internal threats to health - genetic conditions, viral threats, diseases like cancer and Parkinson's. And then there are societal and global ones, like poverty and lack of nutrition. And unknown viral threats - everything from a new kind of influenza to hemorrhagic fever.

You make a great investment in the consumer Internet, maybe you make a lot of money and create something useful, interesting, or fun. But in life sciences, you have a chance to be part of something that lets people live longer and healthier and not lose the people they care about. That is really profound.