We're just full of water

Shopping at Friendship Heights, at Bloomingdales, actually, I stop for coffee. There's a banner light stuck vertically in the public square. In Times Square it would have lit up messages advertizing the latest play, the latest fashion. In LA, it would carry promotions for the latest movie, the latest sports news. But here, in the nation's capital, in this prime spot, there are letters slowly moving across the banner - "...most of your body is made of various waters, water lubricates and eases chemical reactions..." Would be more exciting to note that we need air to breathe, or that the grass should be green, or that fire is hot? Or shall I stop drinking the coffee?