serious question: what things should you work on that can have the greatest impact and compound positively (I.e go beyond changing just your personal habits)?
The flip question is interesting too. What should you not work on, or at the very least strive to not work on or use?
imo space tech. why? because we need space colonies and because there are currently nations which can’t wait for global warming to come soon enough (russia has a whole new income stream they plan, and starting to, exploit)