Q: Do you think plant-based and lab-grown meats could be the full solution to the protein problem globally, even in poor nations? Or do you think it’s going to be some fraction because of the things you’re talking about, the cultural love of a hamburger and the way livestock is so central to economies around the world? A: For Africa and other poor countries, we’ll have to use animal genetics to dramatically raise the amount of beef per emissions for them. Weirdly, the US livestock, because they’re so productive, the emissions per pound of beef are dramatically less than emissions...