If we invest in researching and developing energy technology, we'll do some real good in the long run, rather than just making ourselves feel good today. But climate change is not the only challenge of the 21st century, and for many other global problems we have low-cost, durable solutions.

People are naming it the Third Wave, the Information Age, etc. but I would say those are basically technological descriptions, and this next shift is not about technology - although obviously it will be influenced and in some cases expressed by technologies.

If technology has finally caught up with individual liberty, why would anyone who loves freedom want to rethink that?

I have a love/hate relationship with just about all technology in my life. My first typewriter in particular. I had a helluva time putting new ribbon on it.

The growth of technology is such that it is not possible today for a nuclear physicist to switch into medical physics without training. The field is now much more technical. More training is needed to do the job.