http://iopscience.iop.org/article/10.1088/2041-8205/814/1/L15 KIC 8462852: THE INFRARED FLUX Massimo Marengo, Alan Hulsebus, and Sarah Willis 2015 November 19 The Astrophysical Journal Letters, Volume 814, Number 1 says it likes the comet-swarm theory. What about alien megastructures theory? Not even mentioned, at least not in the abstract,