Earlier quoted context omitted.
It is not that hard, however. Every copycat mentioned above replicated it using a few dozen programmers, as did Yandex and Didi and Bolt. The competitive advantage does not lie in the software quality for Uber, but in other things (customer install base, driver base, brand awareness).
That's true for all the FAANGs except Apple and parts of Google. For example, a few dozen programmers can easily whip up a credible competitor to Facebook. The problem is getting enough users to compete.
This is one of those oft-repeated tropes on HN that needs to be out out to pasture for good.
No, you can't do the same job with a few dozen engineers that is currently taking the market leader many thousands of engineers to pull off. That's just hubris. The reality is that it's more complicated than you yet realize, and if you were to really delve into it you'd see the fractal complexity.