McNamara fallacy: > The McNamara fallacy (also known as the quantitative fallacy),[1] named for Robert McNamara, the US Secretary of Defense from 1961 to 1968,

McNamara fallacy: > The McNamara fallacy (also known as the quantitative fallacy),[1] named for Robert McNamara, the US Secretary of Defense from 1961 to 1968, involves making a decision based solely on quantitative observations (or metrics) and ignoring all others. The reason given is often that these other observations cannot be proven. > US Air Force Brigadier General Edward Lansdale reportedly told McNamara,[4] who was trying to develop a list of metrics to allow him to scientifically follow the progress of the war, that he was not considering the feelings of the common rural Vietnamese people. McNamara wrote it down on his list in pencil, then erased it and told Lansdale that he could not measure it, so it must not be important. https://en.wikipedia.org/wiki/McNamara_fallacy https://en.wikipedia.org/wiki/McNamara_fallacy