How far fetched would it be to assume that in the future, facebook would start building a neural network for each of its users, training it to like the same con

How far fetched would it be to assume that in the future, facebook would start building a neural network for each of its users, training it to like the same content as you ? With the amount of data generated by the endless scrolling, you could build a fairly accurate neural network of which content produce which emotion, and then generate adversarial images for targeted advertising.