Beinso Douno: John as an old man?

At some point during the Kenwood era (possibly), someone told John that when he was an old man he would look exactly like cosmic Christian Beinso Douno. This stuck in John's mind, to the extent that when he finally encountered a picture of the mystic several years later, he was a little freaked out. That's the story, anyway. There is a resemblance.