Earlier quoted context omitted.
In my experience, it seems that a lot of people have an un-stated gut feeling that "doing something" must out-perform passive dollar cost averaging a broad low-fee index ETF. If we came up with some obfuscated mathematical dance that, if un-obfuscated, were obviously dollar cost averaging in a broad-based low-fee index ETF, I think it would be more popular. Edit: There are also lots of investment strategies where peo…
>Edit: There are also lots of investment strategies where people are short tail-risk and don't realize it or properly account for it. For instance, my dad is a pretty smart guy (practicing medical doctor who never got his undergrad degree because he crushed the MCATs and got into med school after 3 years of undergrad, back in the 1970s when med school was less competitive) but he's convinced that his gut-feeling cove…
Listening to the stories, med school got progressively easier (1950: tons of WW2 vets on GI bill--older and deadly serious, only 1/3 made it through. 1970s: 2/3 made it through, most dropped first year. 2018: 95% made it through because the schools radically changed from weeding out to hyper-supportive)