“It doesn’t make an iota of difference,” goes the phrase meaning it couldn’t matter less.  That phrase comes from an old theological fight over the letter “i”.  The homousians and the homoiusians had it out over whether the iota should be there.  One side claimed Jesus was of the same nature as God.   The other claimed he was of the same substance.  For this iota of theological difference, hundreds were killed.   More important than an “i” in a word is the “I” in you. …