Same here, I just learned why the radio buttons were called radio buttons with this article. I had never seen them, but never had a problem with them. Also, as

Same here, I just learned why the radio buttons were called radio buttons with this article. I had never seen them, but never had a problem with them. Also, as a non native english speaker, I learned several words in english by programming. I remember seeing the word "if" out of a programming context for the first time, and I knew what it meant because I remembered of c++. :) So yes, convention is more important. People will learn the convention and won't know why. Just like we don't know the exact etymology of every word, but we still can communicate fine. And when we do find how each word or icon was originated, it's interesting, but we honestly could live without it.