It’s a powerful biological response that has preserved our species for millennia. But now it may be keeping us from pursuing strategies that would improve the environment, the economy, even our own health. So is it time to dial down our disgust reflex? You can help fix things — as Stephen Dubner does in this episode — by chowing down on some delicious insects. And: public bathrooms are noisy, poorly designed, and often nonexistent. What to do?