The movie "Her"[1] is already here with AI Chatbots. I was recently fooling around with open source 6B parameter AI chatbots. The model is 20GB. That's just for text and that's more text than I could read in my entire life. I could talk to the chatbot for my entire life and never get to the end of it. The amount of raw information that humans can I/O into their brains is very small compared to these chatbots.
Her (2013) is one of the best sci-fi movies ever made. Not only is it heartfelt and the characters are relatable, but the sci-fi future it is set in is a very accurate representation of our near future. This movie predicted AI companions just as Siri was taking off, and it perfectly predicted the alienation between humans that is slowly getting worse. Simply amazing.
[1]https://www.imdb.com/title/tt1798709/