The screwiest thing he says: ""Well, those things that become fads rage, and then they drop off. When I was growing up there was a product made by Sony called the Sony Walkman--a rage, everyone had to have one. Well, you don't hear about the Walkman anymore."
Yeah you don't hear it because it is ubiquitous, and nearly everyone on earth owns one. It's also being replaced by portable audio players, like the iPod.