Life-like rules — explosive growth from a single seed cell
Generation: 0 Live cells: 1
Life-like Rules: These cellular automata follow B/S notation — B lists neighbor counts that cause an empty cell to be born, S lists counts that keep a live cell alive. Seeds (B2/S) has no survival rule — every live cell dies immediately, but births create explosive diamond-shaped growth that never stabilizes. Replicator (B1357/S1357) produces self-copying patterns. Day & Night (B3678/S34678) is symmetric: the rule looks the same if you swap live and dead cells. These systems were classified by Andrew Wuensche and studied extensively in "Exploring Discrete Dynamics" (2011).