Principlev1PR-1114
Design cognitive systems for your actual operating…
Design cognitive systems for your actual operating environment including its variability and constraints, not for idealized conditions you wish you had, as agents designed for optimal conditions fail when reality reasserts itself.
Why This Is a Principle
This derives from Behavior is a function of both the person… (behavior is a function of person and environment) and When estimating future task duration, people naturally adopt (people adopt an inside view that excludes factors that consume time). It prescribes designing for actual rather than ideal conditions. This is a principle because it's derived (follows from axioms about behavior and planning), general (applies to any system design), and actionable (tells you what to optimize for).