Comment by hn_throwaway_99

As others have pointed out, though, while I used an extreme example, you can take your average, middle-of-the-road yet high-quality software engineer, and if they make the right decisions (select jobs that pay well, live well below their means, invest with a standard diversified portfolio), they could easily retire in their 40s. I'm not saying this route is available to everyone, but certainly available to plenty of folks to not be considered a rare outlier.