"cryptocurrency, which appeals to investors who want to rush to richness. They thrive on pumping up the risk, investing in speculative stuff like crypto in the frothy pursuit of high rewards." Umm, no. At least not in my case. Cryptocurrency is type of currency that is not backed by a country or a country's banks. Escaping the tyranny of banks is why I'm interested in cryptocurrency. And the same thought process leads me to be interested in FOSS, and even the Fediverse, as opposed to giant social media corporations who make money off end users by monetizing their activities.

FWIW, I guess I'm a Boglehead, tho' I've just heard the term. I've read Bogle's book, and it makes sense to me to invest and earn gradually. Anything else is too risky. I try to 'win by not losing'.