"Scientists uncovered the remarkable decision-making ability of this single-celled organism by placing food sources in positions corresponding to cities around Tokyo and observing how the slime mold responded. The slime molds spread out, detecting locally for nutrients and repellents, making local decisions about which direction to go in search of food. Over time, a network of nutrient-carrying tubes emerged that looked remarkably similar to the Tokyo subway system in some places, but was more efficient."
"Teams can make any decision after seeking advice from affected parties and documenting it in an ADR. Use context maps to assign clear ownership of system areas to specific teams. Create architectural principles, document decisions in immutable ADRs, and hold weekly advisory forums. Teams evolve through four phases: disbelief, excitement, consequences, and self-correction. Architects become facilitators between teams rather than decision-makers."
Physarum polycephalum demonstrates autonomous, locally driven network formation that produced efficient nutrient pathways resembling the Tokyo subway when food sources were placed like cities. The organism senses local nutrients and repellents and optimizes tube networks without a central controller. A transformation toward decentralized architectural decision-making began in 2020 after encountering a fragmented legacy .NET codebase and manual deployment processes. Teams are empowered to decide after seeking advice from affected parties and recording decisions in immutable ADRs. Context maps assign clear ownership, architectural principles guide choices, weekly advisory forums provide feedback, and architects transition to facilitation as teams iterate through four phases.
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