[sudosysgen]

But it's not how people save. The average person has too many expenses and not enough income at age 22 to save up as at age 45. And in those later years, the returns diminish.

Sure, if you have sufficient income to be able to save up enough for retirement just as soon as you get a job, that works. But that's not the reality for the average person. Most people don't get a high-paying job straight out of school.

[empthought]

I am not sure what you are arguing. Someone said that retirement works “on paper”, and you get 20% more. I pointed out that “on paper” you get more than double what you put in.

All of these other issues you raise have nothing to do with the financial illiteracy leading to the idea that you save for retirement just to get an incremental return rather than a multiple (or two, really, depending on timing) of what you put in. Perhaps if this were more well known, people would invest more at age 22.

tl;dr we’re talking about “on paper” here, investment works as advertised (In fact, much much better than the original poster believes it advertised). All of the things you bring up here are about scenarios that aren’t “on paper” any more.