Relying on constant insane returns isn't financial independence. Considering how many people are working to extract money from equities it's most likely luck.

Insane returns is one way to get to financial independence, because even if the edge exists, it's going to eventually disappear. You can boast about financial independence once you make enough to live the rest of your life from safe passive yield, after inflation, which in the current very low real rates environment requires a lot - maybe $3M as the bare minimum.