I was unaware that anyone pronounced it Mac OS "Chi"I do abhor the use of greek letters, especially when I was a student. I hated that a bunch of science and math classes hit me with these dumb greek symbols which slowed me down so much and induced massive writing fatigue. Typing out homework saved me, but writing them on tests was painful and slow. I just got away with a more natural notation like d for delta, etc. when I had to handwrite.