The planning fallacy: why projects usually take longer than the estimate
Why an honest project estimate is a range, not a single date
Your boss wants one date. Your track record says five to seven weeks. Why the single date is the dishonest answer, and what to say instead.
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1
Miva wants one date for her regulars, but you give her the range, with your best bet inside it: likely six weeks, seven if it goes like your slower apps. A single date would hide how much nobody knows yet.
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2
Each week of work answers some questions, so the range shrinks. Two weeks in, it's six weeks, give or take a few days.
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