"The value users get from Facebook is almost totally unrelated to profits generated, and therefore to the stock price." They are definitely related. FB create

"The value users get from Facebook is almost totally unrelated to profits generated, and therefore to the stock price." They are definitely related. FB creates some kind of value - some goes to them in terms of profit, some goes to the user in consumer surplus. As FB shows more ads, the consumer surplus goes down. Obviously corps are the one paying, but value to consumers does matter.