The NASA Antarctic Impulsive Transient Antenna has discovered high-energy particles–tau neutrinos–rising from Earth, which are too too heavy to have passed through the planet. The simplest explanation for the phenomenon: another universe where time runs backward. Bill Whittle and Scott Ott put their thinking caps on and discuss the consequences of a time-flipped parallel universe, asking the question: Are we already living our lives in reverse, like the legendary Merlin of Arthurian fame?