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

If we drive down the cost of transportation in space, we can do great things.

If you had to buy a new plane every time you flew somewhere, it would be incredibly expensive.

I think there are too many smart people pursuing internet stuff, finance, and law. That is part of the reason why we haven't seen as much innovation.

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

Even if producing CO2 was good for the environment, given that we're going to run out of hydrocarbons, we need to find some sustainable means of operating.

I think you should always be seeking negative feedback.