Whats amazing and a bit scary though is how social media knows who you know. I understand how they do it, generally speaking, but Facebook and the like has identified people I haven't even thought about for 30 years.
But then, Google knows if I searched for something on Amazon on my work computer, to show me ads for that product on my home computer, even though the 2 computers are not linked in any way except they both know I have an amazon account. So I shouldn't be surprised.
EDITED: 18 Oct 2017 21:10 by INDYLS