How is driving similar enough to coding? You can take 2 coding projects and the times for a team to complete them and their estimates will differ wildly. Commuting on the 280 to Palo Alto from San Francisco is 45 minutes on average. There is nothing mysterious about this or complicated. Coding is much harder and the OP is guilty of a bad analogy fallacy.
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How is driving similar enough to coding? You can take 2 coding projects and the times for a team to complete them and their estimates will differ wildly. Commuting on the 280 to Palo Alto from San Francisco is 45 minutes on average. There is nothing mysterious about this or complicated. Coding is much harder and the OP is guilty of a bad analogy fallacy.
An analogy is like a car. If you take it too far, it breaks down :)