About 20 minutes in to the conversation, one student asked him: "Why are so many of Apple's products white?" I think all of us expected some long explication of the clean and unassuming quality of white as a color.
Instead, Johnny closed his eyes, took a breath, and said (as best as I can recall), "Imagine something that doesn't exist. Imagine something completely new. A new shape. A new device..." After a beat he continued, "Can you imagine something like that?" At this point he was obviously doing the very thing he was suggesting we all try. Then he opened his eyes and plainly said, "Well...when I do they're always white!" Then he laughed like a little kid and said, "I guess that sounds pretty ridiculous, huh?" and moved on to the next question...