How often do you open Facebook and see ads about irrelevant trash? Probably most of the time, right? So why is it so surprising that occasionally that irrelevan

How often do you open Facebook and see ads about irrelevant trash? Probably most of the time, right? So why is it so surprising that occasionally that irrelevant trash might align with something that happened in your day? Another thing to consider: How many times do you hang out with a friend and not notice any particular connection in the ads you see later? Again I'm guessing that's the case most of the time. If they really had such sophisticated matching technology then why not do it all the time?