Back when I had Facebook, I went to my brother-in-law's house. When speaking with his wife, she mentioned a specific place they like to vacation. She only mentioned it once. I never searched for it, and I would have completely forgotten its name, had an ad for it not come up in my feed thirty minutes later on my ride home. That was the definitive moment that I knew it was always listening.
Even lately, I'll mention something out loud to my wife and she'll get an ad for it.
Back when I had Facebook, I went to my brother-in-law's house. When speaking with his wife, she mentioned a specific place they like to vacation. She only mentioned it once. I never searched for it, and I would have completely forgotten its name, had an ad for it not come up in my feed thirty minutes later on my ride home. That was the definitive moment that I knew it was always listening.
Even lately, I'll mention something out loud to my wife and she'll get an ad for it.