In a documentary about the VietNam war (I think it's Ken Loach's), there's an army guy who says this: > When you can't count what's important, you make what yo

In a documentary about the VietNam war (I think it's Ken Loach's), there's an army guy who says this: > When you can't count what's important, you make what you can count, important. That's the McNamara fallacy in a nutshell. Kill counts started to become the end-all be-all of the war because bodies are the easiest thing to count, but it wasn't the relevant metric. Tragedies are often the result of people persisting in something and failing to see the big picture. Even more so when numbers seem to tell them they're right. It doesn't matter that the numbers are right if we're looking at the wrong numbers.