It is doubling now every two years. Doubling every two years means multiplying by 1,000 in 20 years. At that rate we'll meet 100 percent of our energy needs in 20 years.

There are downsides to every technology. Fire kept us warm, but also burned down our villages.

Science fiction is the great opportunity to speculate on what could happen. It does give me, as a futurist, scenarios.

It is doubling now every two years. Doubling every two years means multiplying by 1,000 in 20 years. At that rate we'll meet 100 percent of our energy needs in 20 years.

Find your passion, learn how to add value to it, and commit to a lifetime of learning.

Humans feel deeply the suffering of their friends and allies and easily discount/dismiss the comparable experience of their enemies.

Sometimes people talk about conflict between humans and machines, and you can see that in a lot of science fiction. But the machines were creating are not some invasion from Mars. We create these tools to expand our own reach.