[wskinner]

"Enough" is a function of how much you have and how much you need. 25x annual spend is a common heuristic for the required net worth before you can safely retire. And the older you are, the less margin of safety you need. 4% of $1.3 million is $52k, which is enough to live quite comfortably in many places.

[al_borland]

A bad year or two in the market early in retirement can really change that calculation if they aren’t accounting for sequence-of-returns risk.

[wskinner]

The 4% rule of thumb is intended to include sequence-of-returns risk. See e.g. https://firecalc.com/, a tool commonly used to aid these decisions.