Sure, in the small, a few developers working - fully optimizing stuff usually works better. But on bigger design spaces, when you let hundreds of thousands of

Sure, in the small, a few developers working - fully optimizing stuff usually works better. But on bigger design spaces, when you let hundreds of thousands of people collaborate, create bigger markets faster, and grab more revenue - you enable a much more detailed exploration of the design space. And often, you discover hidden gold. But also - if you've discovered you've made a terrible mistake in your abstractions - you can often fix that, maybe in the next generation.