That aside, I have always invested in a small number of individual stocks, with minimal management or effort, and only moving positions between companies slowly over time. Basically, I make bets on long-term trends that I view as technologically inevitable. I don't invest in sexy companies (though some become sexy later), I invest in companies that are undervalued relative to the technology trends. That strategy is pretty trivial but it has allowed me to beat the S&P index pretty consistently over decades (famous last words) with the money I don't have a better use for e.g. savings. In fact, the margin by which I beat the S&P has been slowly improving, which I think reflects the increasing ability of tech to move the needle on the economy.
Since this is a tech site, this would seem like a repeatable strategy that anyone could and would use. But apparently people don't. Of course, I could just be really lucky.