> No unit in the metric system maps simply to anything a human can immediately relate to This "intuition" is not intrinsic, though, but is because of familiari

> No unit in the metric system maps simply to anything a human can immediately relate to This "intuition" is not intrinsic, though, but is because of familiarity. If you've done track sports (or watched athletics), you can visualize 100m. If you've watched NFL, you can "intuit" 10 yards empirically - not because it equals to 30 feet and you look at your own feet. The same goes for 21"/27"/42"/60" (TVs). The only scenario I can imagine where of human-relatibility would matter is when the unit is unknown to the listener, e.g. if someone introduced me to a carlength (or the notoriously unintuitive 'length of a football field'); however, this is now completely unnecessary with modern education and standardization The origin of the measure is just lore, and counts for nothing; which is why being immersed into a system which you were previously unfamiliar with (metric or imperial) bestows the same "intuitiveness" - as anyone who joined the US army can tell you. The argument that imperial units are somehow relatable as they are similar to naturally occurring things is a textbook appeal to nature.