I usually love articles that make things simple, but this article was... Too simple. Anyway, afaik YouTube was one of the first large-scale applications of thi

I usually love articles that make things simple, but this article was... Too simple. Anyway, afaik YouTube was one of the first large-scale applications of this, where they used Recurrent Neural Networks to model what video you might watch next in their recommendations (similar to how an NLP model might predict what word comes next).