> It doesn't matter how much you dollar-cost average your investments when there's five-ten year runs of negative returns. But as you can see there isn't a sin

> It doesn't matter how much you dollar-cost average your investments when there's five-ten year runs of negative returns. But as you can see there isn't a single example on this chart where someone could add to their portfolio over ~50 years and entirely lose money. > there are extended periods of negative returns entirely possible I mean, the very worst extended period is the 20-year range from 1961-1981 where -2.0% was lost year over year. I never argued against this, just that over the long run it is smoothed out by positive returns over time. The comments you're making are much more emotional than fact-based: - "utter garbage" - "rationalize a continued belief in compound interest" - "irrationality is likely to cost you, in your real life, quite dearly" - "actually engaging with the truth of the market return rate" The chart itself, and the way virtually every American structures their retirement accounts doesn't reflect your interpretation.