I spent two years at Steve Jobs' side doing a biography, and then I followed Elon Musk for years to understand his journey and share that information.

Elon Musk has an unparalleled ability to will future technologies into existence, and I respect all the phenomenal people in this space.

I split my time mostly between SpaceX and Tesla, and I also spend part of every week at OpenAI, typically half a day.

I spend about 80% of my time on engineering and design, focusing on developing the next generation of products at SpaceX and Tesla.

About 80% of my time at SpaceX and Tesla is dedicated to engineering and design, focusing on developing the next generation of products.

I often hear ambitious young people ask how they can become the next Elon Musk.

In 2008, both SpaceX and Tesla were facing dire situations. SpaceX had failed its third launch in a row, and Tesla was going bankrupt. It was a nerve-wracking time, but we managed to secure a contract with NASA to resupply the space station, which was a company saver.

I think the most obvious investment I made was in Tesla in 2013, as they had already proven their product's demand and capability.

I don't really know Elon very well, but judging by the results, he must be a very capable leader.