Rich people have had a good 2017, with the stock market and the accumulated net wealth of the top ten per cent of earners skyrocketing and the passage of a radical US tax bill designed to inflate their wallets further. So in yet another infuriating sign of how they're planning to blow all that money on things like hideous Koch-branded shirts, hydrofoils, and ways to impale birds, our aristocratic overlords have apparently discovered you can drink unfiltered water and are busy convincing themselves it's worth at least six bucks a gallon.