Be honest: Do you actually drink eight glasses of water every single day? Would you even know if you did? The truth is, you probably have no idea how much water you drink daily; it’s not something people normally keep careful track of. Even better: You probably don’t have to.
In 2012, the US government put on its futurist hat and published a report entitled "Global Trends 2030: Alternative Worlds." It's full of both grim predictions and hopeful insights about the world that humans will inhabit within the next two decades.