In the last few years, the popularity of "plant-based diets" has exploded. Celebrities from Tom Brady to Beyoncé promote eating less meat. Even Burger King introduced a meatless burger. Nina Gheihman, a PhD candidate in sociology, tells us how vegan cultural entrepreneurs, celebrities, and researchers are changing hearts, minds, and dinner plates. She'll also explain why we might all be eating vegan soon - whether we like it or not.