cognitive complexity and failures of computer programs

One of the most frequently overlooked performance metrics is the cognitive complexity of a codebase. If engineers experience high friction when trying to change a codebase, all efforts to make the code faster will be dramatically hindered. A codebase that is a joy for engineers to work with is a codebase that will see the most long-term optimizations. Codebases that burn people out will not see long-term success unless they receive tons of funding to replace people who flee the project after short periods of activity. Organizational instability is a high-quality predictive metric for the bugginess of a codebase.

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