Startups allow technologists and scientists to take risks and change plans in a way that would be frowned upon in a big company. Having said that, big companies will play a key role in certain areas and in partnerships with little companies. Each has its strengths.

Everybody else is afraid to fail. I do not really care because when I fail, I try something new.

No one will pay you to solve a non-problem.

There are parts of the country in America, in the Midwest, where wind is a big resource, and we should absolutely use it. But to try and apply it nationally doesn't make sense. There are technologies that will work that are appropriate to certain regions.

Communication always changes society, and society was always organized around communication channels. Two hundred years ago it was mostly rivers. It was sea-lanes and mountain passes. The Internet is another form of communication and commerce. And society organizes around the channels.

The state of healthcare today is that we are busy in the practice of medicine vs. being in the science of medicine.

As for companies invested in the space - I think its important to distinguish between a good investment and a material climate change technology - you can have the first without the second, even in the "clean tech" space.