a) That's the general problem. If you are being encapsulated by the algorithm, there is no way out of the bubble so it doesn't help at the end that they use col

a) That's the general problem. If you are being encapsulated by the algorithm, there is no way out of the bubble so it doesn't help at the end that they use collaborative filtering, because majority of people ends up watching the same things. b) They chose the metric that made the most business sense. That's why if you spend 6 months working on your video and somebody else produces one video a day, you'll never show up anywhere close to top of the suggested videos. c) Agree. Amazon has one of the better ones, but it's still terrible. You hit the nail on its head with your assumption. This is in general Google's approach. But even with deep learning, the system is heavily biased, intentionally.