Do you think you can "just" live a normal life with a billion dollars?

Being poor sucks and being rich is nice, but being ultra-rich like that is a bit like being a popstar, where things like going out to a shopping centre or having a normal social life become impossible.

So you think if you had a billion dollars you'd worry about money less?

You'd just worry about different aspects of money. How not to lose what you have, how you will be constantly approached by grifters, how to keep yourself and your family safe.

Different issues, but still worry and still about money. IMO once you're past a certain level it's a lot more about mindset than about what you actually have, right up until you truly stand out from the crowd.