I think it's because of this[1]. [1]https://en.wikipedia.org/wiki/List_of_Robot_series_characters#R._Daneel_Olivaw https://en.wikipedia.org/wiki/List_of_Robot_

I think it's because of this[1]. [1]https://en.wikipedia.org/wiki/List_of_Robot_series_characters#R._Daneel_Olivaw https://en.wikipedia.org/wiki/List_of_Robot_series_character... "The "R" initial in his name stands for "robot," a naming convention in Asimov's future society; all robot names start with the initial R to differentiate them from humans which they often resemble."