It's why remote learning took off with the rise of scalable online video, not just audio. It's why in person learning is still the best - to combine with other senses. It's why moving pictures are more compelling than flat ones. And it's why we relate to people by looking at their faces. What's it mean for practitioners? - Show, don't tell. - When at all possible (they aren't offensive to look at or have noticeably distracting characteristics) put a principal in front of a camera to ask people for things, like we expect leaders to do. - Be doubly careful when doing so with women.