How Much Sand Is There?

There are more stars n the universe. Then there are grains of sand on earth, or something like that. Ithink its a thing that we all a would do well to think more about that stuff. Ah, not just for our own sakes, but for everybody's ecause we're may be headed into a world where it gets harder and harder to lead the kind of life that people can imagine as a success. And that does that lead to much less happy society, which has a lot of negative impacts.