The number is from The Mythical Man Month by Fred Brooks, based on his experienc...

		_tggb on Dec 23, 2009 \| parent \| context \| favorite \| on: Why programmers are not paid in proportion to thei... The number is from The Mythical Man Month by Fred Brooks, based on his experiences when developing IBM's OS/360. Beyond that, I can't really answer the rest of your questions; I haven't managed to sit down and read it yet.