It’s a really tough question to answer because over time the $ continues to lose purchasing power. What might have been enough to retire 50 years ago would likely not be enough to retire now.

If for example you were 50 years old, I think you’d probably need $2,500,000 or something like that, plus a passive income from a pension to retire & fully enjoy life, not stressing about running out of money. If you asked me this question even 10 years ago my answer might have been $1,500,000.

This is why we buy bitcoin though