Career
He has written about the 2012 phenomenon since 2000. His website, launched in 2000, was one of the first to discuss a scientific doomsday for 2012. In September 2009, Bast was interviewed by Playboy magazine for their feature article Apocalypse 2012.
On 8 November 2009, he appeared in a National Geographic Channel documentary 2012: Countdown to Armageddon.
He has claimed that the end of the Mayan Long Count calendar could be a scientific prediction by an ancient culture, citing a solar storm and the return of a comet as possibilities.