If for example Google Assistant is ever going to be able to _really_ understand what people are talking about, it will most likely need to be based on a virtually embodied agent gradually trained somewhat like a human child. If you or any of the other Google Brain team members are interested, you should study the existing field of AGI. See 'AGI-16 videos intelligence' on youtube for example. I mention this because these papers such as the one linked here frequently reference general or animal-like intelligence, yet almost all of the best funded AI efforts seem explicitly ignorant of or dissmissive of the existing AGI research.