Evolution Through a Systems Architect's Eyes
One useful engineering analogy is a production system that can never be globally shut down for a clean rewrite. Every viable change must pass through a functioning…
Evolution, natural selection, biological history and the architecture of living change.
One useful engineering analogy is a production system that can never be globally shut down for a clean rewrite. Every viable change must pass through a functioning…
Multicellularity evolved multiple times, making cooperation itself one of the major transitions in biological…
Darwin's descent with modification unified observations across species, geography and fossils; genetics later supplied mechanisms of inheritance that Darwin did not…
Natural selection is striking because it can produce apparent purpose without…
Darwin and Wallace independently recognized natural selection as a mechanism capable of explaining adaptation; population genetics later made the process mathematically…
Services in a cluster are designed modules. Biological cells are developmentally entangled, physically coupled and descended from reproductive lineages; their interests are not automatically…
Mutations are changes in genetic material produced by physical and biochemical processes. They are not generated because an organism needs a particular adaptation, and their effects depend on genomic position,…
Multicellularity requires cells to cooperate, specialize, exchange signals, regulate growth and suppress conflicts that would damage the collective. Development reconstructs this coordination again and again from a…
Mutation makes contingency unavoidable: every lineage carries a history of events that did not have to happen exactly that…
The code-change analogy highlights persistence, copying errors, repair and robustness. It also reminds engineers that a system's future depends partly on how variation is introduced and…
Software bugs violate an intended specification. Evolution has no fixed specification, and mutation is not merely damage; variation is also raw material for population…
Mutation became central to evolutionary theory when genetics was integrated with natural selection in the modern…
Natural selection occurs when heritable differences affect reproductive success in a particular environment. It can make some traits more common without inspecting all possibilities or guaranteeing a global…
The phenomenon destabilizes the word individual: a body is one entity built from vast numbers of living cellular…
Engineering optimization offers language for constraints, trade-offs and local improvements. Selection can resemble a blind local search using whatever variation…
Evolution changes populations across generations through heritable variation, differential reproductive success, drift, migration and other processes. Natural selection has no foresight: variants are filtered in actual…
An optimizer normally has an explicit objective function. Organisms face multiple changing pressures, and evolution includes drift and migration as well as…
Distributed systems also require identity, communication, division of labor and constraints that keep local behavior from destroying shared…
Evolution replaces essence with history: what something is partly reflects the path by which it…
Software migrations are intentional and judged against chosen goals. Evolution has no roadmap, product owner or universal optimization metric; history constrains which changes are…