Back when this first came out, in 1968, nobody knew what the hell he was talking about. It was just some kind of nonsensical sci-fi visio...

(This is the sort of pass-it-around thing I don't usually like, but the more of it you read the more light bulbs come on.) Checkin...

This is raw footage, shot in portrait rather than landscape (which I thought went out of style 5 or 10 years ago), but I include it in it...