We've all heard of "social distancing" by now. The term is used frivolously about as often as it's used to encourage serious action to slow the spread of COVID-19. Is social distancing enough to fight against coronavirus? According to renowned biologist Dr. William Haseltine, the answer is "no." Here is why more extreme steps of self-isolation are necessary, and why we should look at the mitigation practices of countries like China and South Korea.