Estimate Duration with Actual Effort and Waiting Time
Hofstadter’s law is an observation that tasks take longer than expected even after allowing for that tendency. It supplies a caution rather than a fixed overrun formula.
Estimate active work and waiting separately, using comparable completed work and current differences.
Use the Observation without a Universal Multiplier
Atlassian discusses Hofstadter’s law as a warning about work exceeding expectations. (Atlassian: Engineering planning and Hofstadter’s law) Avoid turning it into a universal multiplier.
For unfamiliar work, test an unknown operation to learn its duration.
Include Work, Review Waits, and Revisions
Two hours of drafting with review on the next day does not mean same-day completion. Mark submission and review separately.
Choose schedule allowance against actual variation and the effect of delay.
Use Estimate Differences in Future Plans
Record effort, waits, and revisions to identify overrun causes. Repeated waiting calls for revised review ownership or timing.
Keep public intake periods aligned with delivery capacity.
For the related decision, read Set deadlines using effort and waiting.
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