The first 90 percent of the code accounts for the first 90 percent of the development time. The remaining 10 percent of the code accounts for the other 90 percent of the development time.
–Tom Cargill
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No, I think that’s correct
That’s 180%
It should be 90% takes 10% and the last 10% takes the remaining 90%
I think what Cargill is saying is that the last 10% of the code takes as much effort as the first 90%. And he is humorously referring to the all the overtime people have to put in to get things done on time. That’s why it adds to 180%.