No I've never encountered those efforts and have had no reason to evaluate them one way or another. Maybe they are too small to have reached any appreciable public notice? (or at least my notice).
To be honest though, I feel the opinions and speech of billionaires are amplified in our media so one should always be more critical and cautious of any of their projects, because money gives the ability to shortcut a more critical vetting of the effort.
To be honest though, I feel the opinions and speech of billionaires are amplified in our media so one should always be more critical and cautious of any of their projects, because money gives the ability to shortcut a more critical vetting of the effort.