The OTCA metapixel[note 1], is a 2048 × 2048 period-35328 unit cell that was constructed by Brice Due between the autumn of 2005 and the spring of 2006. It has many advantages over the previously known unit cells such as the p5760 unit Life cell and deep cell, including the ability to emulate any Life-like cellular automaton[note 2] and the fact that, when zoomed out, the ON and OFF cells are easy