I'm glad to see that BMW is bringing an electric car to market. That's cool.

People often mistake technology for a static picture. It's less like a picture and more like a movie. It's the velocity of technology innovation that matters. It's the acceleration.

I realized that a methane-oxygen rocket engine could achieve a specific impulse greater than 380.

Don’t just follow the trend. You may have heard me say that it’s good to think in terms of the physics approach of first principles. Which is, rather than reasoning by analogy, you boil things down to the most fundamental truths you can imagine and you reason up from there.

So, there's quite a big keep-out zone, and when you factor the keep-out zone into account, the solar panels put on that area would typically generate more power than that nuclear power plant.

No I don't ever give up. I would have to be dead or completely incapacitated

There's a real opportunity to have a vertical takeoff and landing electric supersonic jet.