[dagss]

Perhaps some day someone will invent a way to get 20 to produce the output of 10 + redundancy...

One theory is: If you have just a little too many developers (redundancy), they become bored and find ways to introduce auxiliary complexities to keep things interesting, thus things explode to 100 developers being needed...

[lanstin]

Nothing more dangerous than a bored committer.

[cudgy]

Have 2 teams of 10 develop the same thing and pick the best one?

[dizhn]

The result would still not be guaranteed and one of the teams would have terrible morale at the end. (The other one too probably since there's a 50 percent change they are working for nothing)

[nathants]

teams of 2 or 1, self selecting. sometimes double up and compete on the same project with multiple implementations.