Many things are improbable, only a few are impossible.

It's obviously tricky to convert cellulose to a useful biofuel. I think actually the most efficient way to use cellulose is to burn it in a co-generation power plant. That will yield the most energy and that is something you can do today.

I could either watch it happen or be a part of it.

And we need things in life that are exciting and inspiring. It can't just be about solving some awful problem. There have to be reasons to get up in the morning.

Even if there's a zombie apocalypse, you'll still be able to travel using the Tesla Supercharging system.

If you think back to the beginning of cell phones, laptops or really any new technology, it's always expensive.

Failure is an option here. If things are not failing, you are not innovating enough.