To prevent the spread of the COVID-19 coronavirus and flatten the curve, many countries are practicing social distancing, or what the WHO is now calling physical distancing. The virus is transmitted via respiratory droplets, so maintaining physical distance from people can help protect you and others. People are staying inside, working from home, and only going out for essential activities. But how long will this period of social distancing last? Unfortunately, no one knows for sure. The answer is complicated, and it partly depends on our actions.