AI in Marketing (Deep Learning)

https://www.ted.com/talks/yann_lecun_deep_learning_neural_networks_and_the_future_of_ai
https://www.youtube.com/watch?v=06-AZXmwHjo
https://www.youtube.com/watch?v=23UXLVjuQcU
Please watch videos above and answer:
What did you find most interesting from this talks on deep learning?
Please write one paragraph per each video.