Why are software development task estimations regularly off by a factor of 2-3?(quora.com)
quora.com
Why are software development task estimations regularly off by a factor of 2-3?
https://www.quora.com/Why-are-software-development-task-estimations-regularly-off-by-a-factor-of-2-3/answer/Michael-Wolfe?share=1
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Because speculation tends to be wrong.