He didn’t strike me as very nervous, but if he was, he had good reasons: He announced that they would halt production of Falcon rockets after building a big enough batch of them and completely focus on building spaceships. He announced to endanger the only big revenue stream SpaceX has in favor of an unproven technology in the hope to solve all problems and start production before the last Falcon rockets seize to be reusable.

> Musk isn't a very good speaker and he seemed very nervous ...

Sort of.

Looking back, he sounded much more confident when he was younger [0] perhaps because he hadn't yet experienced life altering events like the loss of a child or coming close to bankruptcy at the end of 2008 after sinking his networth into SpaceX and Tesla.

I think his seeming lack of confidence when he speaks publicly today is a latent acknowledgement that the stakes are much higher relative to his PayPal days when the Internet was incipient, and that failure is still a possibility, regardless of the amount of resources he may have sunk into his investments.

[0] https://youtu.be/jbXhReHXTH8