The Yale economist Robert Shiller has indexed American housing prices going back to 1890. You know how people like to say that such-and-such experience “was a real roller-coaster ride”? Well, the blogger Richard Hodge at SpeculativeBubble.com wanted to see if housing prices really were a roller-coaster ride. So he plotted Shiller’s inflation-adjusted index onto a roller-coaster video ride. It is . . .