I’m old enough to remember the advent of YouTube and remember thinking that it would obviously be one of zillions of video-streaming sites. Nope. Still I am mys

I’m old enough to remember the advent of YouTube and remember thinking that it would obviously be one of zillions of video-streaming sites. Nope. Still I am mystified by the dynamic whereby there is just one website people go to to watch videos and just one Twitter and just one Facebook. Somehow, having all the choice in the world funnels into its opposite.