That’s not actually a lot of money (no matter what the currency) for a municipal water/sewer system for a city of nearly 3 million people. That is, it’s a lot for someone to give, but it’s not a lot compared to the overall cost. And they received the donation a month ago.
Meanwhile, in the “Tech billionaires are the dumbest motherfuckers on the planet” file, Marc Andreessen says he has zero sense of self and the concept of introspection was invented by therapists in 1920.
I’m not staggered by the cost of fixing the sewer system. But that much gold I’m sure they didn’t drive up in a dump truck to hand deliver. It just seems an oddly specific and cumbersome choice of currency when the actual exchange was some sort of electronic transfer or paper exchange.