Timothy Williams: Some people are quite worried about the declining global birth rates. He says this is because elderly are a dependent population, and someone has to support them. If you don't have a lot of young people around, there won't be anybody to have new ideas, good ideas, he says. And that will lead culture, society, innovation to stagnate,. So do you agree with that? "Not really," said Williams.
Talithia Williams thinks you should rigorously track your body's data. She and Steve Levitt trade birth stories and bemoan the state of STEM education.