He's absolutely right. Most people have nothing to say to each other, and that's why social media is a small number of people broadcasting and an overwhelming number consuming. Most pairs of people don't say anything to each other. Absolutely spot on.
He's substantively wrong; he’s right that most people have nothing to say to each other, but its a scaling law being discussed, and “most people have nothing to say to each other" is an issue impacting the constant multiplier, not the scaling rate.
Porn drove electronic payments and a lot of other tech. The fax machine did not carry porn. Look to the medium's ability to be used for porn as a clear indicator of adoption.
It's weird how you just replied to me on social media to tell me people have nothing to say to one another. It's almost like you're ... unaware of what is happening?
I can anecdotally say you didn't add to the conversation with this link, so maybe you are one of the folks who do not have anything to say to another, as Mr. Krugman so eloquently put it.
Seems he was also wrong about social media