I am by no means an expert on financial markets, but my layman's observation is that the internet seems to have changed the whole equation dramatically. In 1980

I am by no means an expert on financial markets, but my layman's observation is that the internet seems to have changed the whole equation dramatically. In 1980, it would have been almost completely impossible for a new-ish company a few years old to have almost a billion customers. But now it's possible, and moreover it's possible to do that without any of those 'customers' having bought anything at all. I imagine that makes the whole game much more volatile.