Don't take my word for it.

I rarely allow myself to seriously venture into the realms of futurology. One of the few times that I did was perhaps thirty years ago when I first saw someone walking down the streets of Jerusalem with the earphones of an early Walkman in his ears. As I admitted four years ago as well, I shook my head and said that it would never catch on. It simply didn't make sense to me that people might attempt to create a private bubble in the midst of a public sphere. I was sort of wrong on that one.

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