For anyone else interested in the interview, it looks like it's this one (https://vimeo.com/308851217 https://vimeo.com/308851217), and the comment about using

For anyone else interested in the interview, it looks like it's this one (https://vimeo.com/308851217 https://vimeo.com/308851217), and the comment about using every Greek letter is at 1:41 or so.