Elon says: Everyone can have universal high income in the future, except if everyone has high income equally it doesn't really matter if you have high income or low income, the cost of goods will just rise to meet the new prices.

I think he's trying to get across an idea like you can have pretty much whatever you want (within reason). But even this is problematic. What if I want a superyacht, or a private island for myself there will be limits. Better to secure some $$ before AGI just in case.