Weirdest anecdote for me: My wife and I were peeling shrimp for dinner and we were chatting how great it would be if there was some kind of tool that would make the task easier.

A while later after we ate, I was browsing Facebook and I was being shown ads for shrimp peeling tools. We had not done any kind of online search, etc. for it. We don't even have any "voice assistants" like Alexa, Google Voice, etc. (Though we both have iPhones so we have Siri).

So how did FB know we had been talking about shrimp peelers?