Inter-Dimensional or ID travel is a Taelon technology that allows vehicles like Taelon Shuttles to travel at faster than light speeds. Lili Marquette tells Paul Chandler that human physics only recognizes 12 dimensions while the Taelons are able to use 16. Inter-Dimensional drives allow travel through one of the other four dimensions ("Horizon Zero"). An Earth company called Portal Space runs the Portal Program, using ID technology to facilitate fast and easy transportation on the planet ("Fissures"). This article is a . You can help My English Wiki by expanding it.