A World Without ( Official Account ) on Instagram: "A World Without... Rulers 📏⤵️ What if rulers never existed? Humans eyeball everything, relying on body parts as measuring guides—fingers, feet, arm spans become our only reference points. We hold objects side-by-side for comparison, estimate distances by pacing, and accept that "about this big" is the best precision we'll ever get. Buildings tilt slightly, clothes fit awkwardly, and "exactly 6 feet" becomes a joke nobody can prove. Ancient civ