I feel sad that I can’t see what my impact will lead to (however small).
I also feel sad that i can’t see how certain new technologies will mature.
I feel sad that I can’t see what my impact will lead to (however small).
I also feel sad that i can’t see how certain new technologies will mature.
Nothing, historically. There are newer trials going on and at least one FDA-approved device in the USA that involves putting some object in your mouth for like 30 minutes a day.