Sengan Baring-Gould owns Ansemond LLC, a Mac and iPhone software company whose current products include Tetratile (an iPhone puzzle board game) and Find It! Keep It! (a Mac web browser that captures web-pages reliably and saves them to a fully searchable database). He earned his Ph.D. in Artificial Intelligence, and has published several papers in this field. In the 1980s, he wrote a seminal series of articles reverse engineering the video hardware of the Atari ST which are still quoted to this day He has taught technical topics ranging from audio synthesis to Haskell.