Investors love companies that have increasing returns to scale.

投资者喜欢那些规模回报不断增长的公司。

And it comes down to a key economic concept, which is increasing returns to scale.

这归结为一个关键的经济概念，即规模收益递增。

Ethan Wu: And yet companies that in the past have looked like they're going to have increasing returns to scale forever have turned up to naught.

吴伊森：然而，过去那些看上去将永远实现规模收益递增的公司却最终一事无成。

It encounted high unit costs and diminishing returns to scale reducing average weight times from two minutes to one would require twice as many drivers, even though most riders would barely notice the difference door dashes hungry.

它遇到了高单位成本和规模收益递减将平均配重时间从两分钟减少到一分钟将需要两倍的司机，尽管大多数骑手几乎不会注意到饥饿时门破折号的差异。