As plenty of people have said, the folks holding forth on what to do today to benefit humanity 30,000 years from now are the exact same folks who couldn't see the FTX meltdown coming
This guy doesn't have much insight, but I'd be interested in hearing a reflection from Larissa MacFarquhar, who wrote in 2015 more broadly about the concept of altruism in her book "Strangers Drowning", including talking to a couple of the EA people before the movement had a name.
What is actually happening is that along with the turn of tech world to the fash right, popular support for development aid of any kind is evaporating. Not really a coincidence