I would probably say courageous rather than "unafraid", there are plenty of things Elon is afraid of, most recently he was expressing how nervous he was about t

I would probably say courageous rather than "unafraid", there are plenty of things Elon is afraid of, most recently he was expressing how nervous he was about the dm-2 launch. There is nothing wrong with fear, it's healthy to have a realistic view of things. It doesn't take any courage to do something you aren't afraid of.