Comment by ianbutler

Netflix still has to serve 20k videos to 300million people. That's about a 750million hours of streamed content. Serving that content is challenging.

Then they have their ad network on top of it. Then they have their analytics apparatus. Then they probably have a whole suite of tools for content producers. Then they probably have a bunch of janky tools for things that didn't exist as products 15 years ago.

Seems reasonable to me if you put in a little more thought about the problem and scale.