>>11420986There's a couple of obvious one's that are essentially just due to lack of money and resources (not due to technological limits), and because it'd be absurd to spend it on one research project.
I'd find it interesting to have a fleet of satellites with active, polarized aerosol instruments that can track plumes with sub-hour resolution.
Or I'd buy the biggest cluster that 100B can buy, and run global climate models at sub-km resolution.