We loved cars until the '70s or so. Then they became appliances. They turned into motorized cup holders. Most of it has to do with urban sprawl. What began as pleasure ends up in necessity, as so many things do.

Humans don't 'need' math-based cryptocurrencies when dealing with other humans. We walk slowly, talk slowly, and buy big things. Credit cards, cash, wires, checks - the world seems fine.

Now it's easy for someone to set up a storefront and reach the entire world in very modest ways. So these technologies that we thought would dis-intermediate traditional sellers gave more people the tools to be sellers. It also changed the balance of power between sellers and buyers.

We could say we want the Web to reflect a vision of the world where everything is done democratically. To do that, we get computers to talk with each other in such a way as to promote that ideal.

The urge to miniaturize electronics did not exist before the space program. I mean our grandparents had radios that was furniture in the living room. Nobody at the time was saying, 'Gee, I want to carry that in my pocket.' Which is a non-thought.

The future is green energy, sustainability, renewable energy.