https://www.wsj.com/articles/facebook-plans-new-emphasis-on-private-communications-11551899847
Q called it. FB back in the news
https://www.wsj.com/articles/facebook-plans-new-emphasis-on-private-communications-11551899847
DARPA created Siri. Personalized Assistant that Learns (PAL).
https://www.darpa.mil/about-us/timeline/personalized-assistant-that-learns