They're listening, but not to your voice or with a microphone. Facebook is listening to your data--to all of our data, all at once. They have locations, searches, clicks, messaging, photos, hashtags, and any other form of browsing patterns for everyone in your country, everyone in your neighboorhood, everyone in the same room as you. They have enough data with such advanced analysis that on occasion they can get real…
Sorry to 'actually' you but that's phrased like Clarke's third law: "Any sufficiently advanced technology is indistinguishable from magic."