Comically absent in this description of ML which includes hard technology like NLP and actual use cases like self-driving cars is the elephant in the room of advertising and surveillance. It's just like Andrew Ng's machine learning course on Coursera - lists all these uses of machine learning....except mining user information for advertising and other purposes. If anything, it's buried under "image recognition" and "recommender systems". And yet it's what brings in the dough. Pretty telling that the overwhelming majority of this technology's current application is too unpalatable to acknowledge.