I used geographic arbitrage - i.e. living in Poland and living modestly (no family), while mostly earning Western world wages ($100k-$170k a year). That's what made it possible while taking plenty of breaks between jobs for the sake of sanity. If you're in the US, probably try landing into a FAANG? You need to make a lot of post-tax money relative to your spending for this to be feasible. Ideally, you'd be saving 80%+ of your post-tax income.