|View static image|
|Number of cells||52|
|Discovered by||Nick Gotts|
|Year of discovery||2000|
Metacatacryst is a 52-cell quadratic growth pattern found by Nick Gotts in December 2000. It is a modification of the catacryst (also found by Gotts) that contains six fewer cells but has a much larger bounding box. In terms of its 52 cells, it had been at one time the smallest known pattern that exhibits superlinear growth, but was superceded by 26-cell quadratic growth, which had been also found by Gotts.
Metacatacryst almost undoubtedly exhibits quadratic growth, but it is nowhere near as regular as other breeders. There is a form of expanding feedback loop, as switch engines deplete the gliders. An aperiodic sequence is generated by the resulting pattern of switch engines.
The bottom-left portion of the catacryst (an ark)
The top-middle portion of the catacryst (a glider-producing switch engine)