It's solved by Netflix. Doesn't mean it's solved by anyone else, though there are also quite a few other companies that have it "solved" for their level of usage, even if they couldn't flip the switch tomorrow to become Netflix.

"Solved" also doesn't mean there aren't people maintaining it or working on it or getting woken up at night by pages to keep it going. It just means, they've got a handle on it and when the Netflix executive team meets to discuss the business, they aren't spending much time discussing the question of whether or not they can stream video to their customers.