> So your messenger app read your mind? No it just read my pre-existing social network graph. And then very accurately predicts who I might want to add to that

> So your messenger app read your mind? No it just read my pre-existing social network graph. And then very accurately predicts who I might want to add to that graph. But practically speaking it comes out to the same thing - I have never had to create a messaging whitelist. While email and email tooling is completely ignorant of my multiple social network graphs that are stored in various places on the Internet.