Genotype and phenotype fitness diverge under stress sharing

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• For 20x20 grid, stress-sharing population reached max phenotypic fitness by generation 100; hardwired reached max at generation 1000; without-sharing never reached maxfinding0.809
  Demonstrates benefit of stress sharing across smaller grid complexity.
• Stress sharing will be favored by evolutionary processes.hypothesis0.807
  Evolutionary fitness hypothesis tested in the GA.
• We hypothesize that stress sharing improves morphogenetic efficiency and increases cohesiveness of multicellular collectives.hypothesis0.779
  Central predictive hypothesis motivating the quantitative agent-based modeling.
• Stress-sharing populations reach anatomical targets faster than hardwired or non-sharing populations.finding0.771
  Populations with stress sharing discovered correct morphology by generation 500, vs non-sharing and hardwired (p≪0.01).
• Stress sharing is an easy way to achieve robustness in collectives made up of homeostatic subunits.claim0.771
  Generalization of the model's implications.
• Sharing of stress between cells facilitates morphogenesis and increases robustness of morphogenetic outcomes.hypothesis0.770
  Prior hypothesis tested in the paper; from Levin 2022.
• Stress sharing improves morphogenetic efficiency of multicellular collectives.claim0.770
  Central interpretive claim supported by multiple findings.
• Which trait pairs combine cleanly, which produce a single dominant trait, and which collapse both?question0.768
  The open question motivating the pairwise composition study