He's saying: this is why Uber city-ridership as a Zipf law with alpha = X: the economy has a Zipf law with alpha = X. You're saying: this value of alpha presen

He's saying: this is why Uber city-ridership as a Zipf law with alpha = X: the economy has a Zipf law with alpha = X. You're saying: this value of alpha presents a concentration of risk for Uber. Yes, you're both saying things that aren't false.