Michael Burry (guy from the big short) has been doing the same. We all know climate change is going to fuck us, we all know we are headed towards serious water shortages, etc - these guys also know and have money to position themselves - for what final gameplan I don't know, but at least with Gates his recent history has shown a care for the greater good for humanity at least. Can't say the same for other billionaires.

I know Bills history pretty well, I just see a difference between him now and how he was a ruthless businessman in his prior life. Maybe he has me fooled, but I don't really see it other than people's conspiracy theory stuff. Guys like Elon are another story though