Louis, a very simple question: in your model of self-replication, when you enter the environment, could it mean something else than just providing the raw stuff for reproduction? It would be great if related to successive cycles one could include emergent topological (say geometrical-mechanical) properties. For instance, once you have divided three times the initial egg-cell, you would encounter three symmetry axes that would co-define the future axes of animal development--dorsal/ventral, anterior/posterior, lateral/medial. Another matter would be about the timing of complexity, whether mere repetition of cycles could generate or not sufficient functional diversity such as Plamen was inquiring in the case of molecular clocks (nope in my opinion). best--Pedro

Pedro C. Marijuán
Grupo de Bioinformación / Bioinformation Group
Instituto Aragonés de Ciencias de la Salud
Centro de Investigación Biomédica de Aragón (CIBA)
Avda. San Juan Bosco, 13, planta X
50009 Zaragoza, Spain
Tfno. +34 976 71 3526 (& 6818)

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