Today on #YourDailyEquation, join Brian Greene as he explores how entropy and the second law of thermodynamics illuminates the difference between past and future-why glasses break but don't unbreak, why candles burn but don't unburn, why we age but don't un-age. Why, that is, there is an arrow to time. Surprisingly, the discussion brings in the Big Bang itself. Airing at 3pm EDT on our YouTube channel. Link in the bio.