Why can't Uber be a monopolist?

ring ry Green translation: Dai Mi pleasure capital founding partner source: ThinkingSlow (ID:ThinkingSlow) Uber slow thinking may not be the same as Facebook and other Internet Co monopoly company,
the reason is that: 1) the effect of Uber network is the supply side,
on the scale to be broken; 2) the lack of Uber zero marginal cost effect of Internet Co.
When the market before the three Sidecar earlier this year to close and sell their assets to GM,
many people think that sharing travel market appears the war ended,
the prevailing view is that Uber is destined to become a market monopoly.
But recently,
Lyft and didi got billions of dollars in investment,
and many people have already questioned this view and began to think whether there can be multiple players in this market From Silicon Valleys point of view,
an article earlier this year by New York said that technology driven industries wer