My background educationally is physics and economics, and I grew up in sort of an engineering environment - my father is an electromechanical engineer. And so there were lots of engineery things around me.

I don't spend my time pontificating about high-concept things; I spend my time solving engineering and manufacturing problems.

Physics is really figuring out how to discover new things that are counterintuitive, like quantum mechanics. It's really counterintuitive.

I'm very pro-environment, but let's figure out how to do it better and not jump through a dozen hoops to achieve what is obvious in the first place. There should be a categorical exclusion [for Falcon] just like airplanes that use non-toxic propellants. That would be a huge improvement,

I tend to approach things from a physics framework. And physics teaches you to reason from first principles rather than by analogy.

I usually describe myself as an engineer; that's basically what I've been doing since I was a kid.