This could be applied to so many industries…
“I think records were just a little bubble through time and those who made a living from them for a while were lucky. There is no reason why anyone should have made so much money from selling records except that everything was right for this period of time…It was a bit like if you had a source of whale blubber in the 1840s and it could be used as fuel. Before gas came along, if you traded in whale blubber, you were the richest man on Earth. Then gas came along and you’d be stuck with your whale blubber.”
Related: “Over the next decade, every industry will undergo a transition from locked down and closed, to blown wide open” – http://bit.ly/47wouE (from my favstar list).
A Frog in the Valley 