Alexander Keewatin Dewdney (August 5, 1941 – March 9, 2024) was a Canadian mathematician, computer scientist, author, filmmaker, and conspiracy theorist.
[5] Dewdney wrote two novels, The Planiverse (about an imaginary two-dimensional world)[6] and Hungry Hollow: The Story of a Natural Place.
[10] Beginning in the nineties, Dewdney worked on biology, both as a field ecologist[11] and as a mathematical biologist,[12] contributing a solution to the problem of determining the underlying dynamics of species abundance in natural communities.
Dewdney was a member of the 9/11 truth movement, and theorized that the planes used in the September 11 attacks had been emptied of passengers and were flown by remote control.
[13] He based these claims in part on a series of experiments (one with funding from Japan's TV Asahi) that, he claimed, showed that cell phones do not work on airplanes, from which he concluded that the phone calls received from hijacked passengers during the attacks must have been faked.