The growth of technology quickly leads to obsolesence of older technologies and things that used to be an integral part of society are going the way of the laundry mangle and the chamberpot.
I was listening to the radio when the song "Kodachrome" came on. When I was a kid, slide film was well on the way out and I have to wonder how many kids nowdays even know what Kodachrome is. Or for the matter, a "Big Ten Inch", or "Western Union". Will these songs have any meaning at all to kids 10, 20, 30 years from now?