Hacker News Reader

You don't know many billionaires then. Many prominent philanthropists have written extensively about how to track, measure and optimize the impact of their donations.

A lot of charities secretly loathe big donations from the super-wealthy, because they come with all kinds of strings. The charities can't say no, generally. But people who run charities are rightfully put out when a rich person likes a charity enough to give it a lot of money but not enough to let the people running the charity use their expertise to decide how to spend it.

Seems like exactly how Bill Gates has spent his time since retiring from Microsoft.

Agreed. They generally hire teams of people to do it for them.