If you wouldn't mind reviewing https://news.ycombinator.com/newsguidelines.html and taking the intended spirit of the site more to heart, we'd be grateful.
At the same time, it's a bit disingenuous. What does "vaccinate the world" mean now? Two shots, three, ongoing six-monthly boosters? Even that ignores the fact that the vaccine doesn't work that well on new variants. It would be nice if it was that simple to just spend a "trivial" amount of money and end this, but I don't see anything actionable here
Thinking more about this, it's a bit the same as the thing with Elon Musk and the world food program, in that proponents have put a price tag on something that's not too high, but when you dig into it, that something doesn't really get you as far as it's proponents make it out. It would be great to see Elon or someone of similar means say they will put up the $50 Bn if they are given a sound proposal of how it would end covid restrictions