I can't believe I have to spell this out, but fine.
You’re mixing up two completely different things. Yes, your phone has to
locally listen for
one wake word like “Hey Siri” or “Alexa.” That’s a tiny on-device model pattern-matching a few syllables and does not require recording or analyzing full conversations. It never leaves the device until you actually trigger it.
If what you think is true, and the phones are constantly listening for patterns. Think about how this would work. Say I am talking to a friend about dog food for his dog. I don't own a dog, but I start seeing ads. Which makes more sense?
My phone is constantly listening to me model:
- The app must Continuously listen to all audio in the room (not just wake-words) all the time, in the background, bypassing the "microphone is on" without Apple catching them.
- Stream that audio over the network or store it locally until it can upload petabytes per day at global scale.
- Transcribe it in real time into text, in every language/dialect, for every human being on earth.
- Parse the text for ad-related concepts (“dog food”), link it to your personal ad profile, and do this for billions of users.
- Push a targeted ad to you within a day or two.
- Avoid getting detected by security researchers, governments, disgruntled employees, etc. If you mess up this step your company's leadership goes to jail
And remember, if you are right and they are recognizing patterns and that is happening on device, why am I getting the dog food ads? They don't know to listen for dog food for me, because I don't own a dog, have never searched for dog food, etc. They wouldn't know to be looking for the "dog" pattern to recognize UNLESS they were streaming, transcribing, parsing, etc.
Meanwhile, the inference model:
- My friend and I have phones with location services on. Facebook/Google see that we're in the same room for 45 minutes.
- My friend has recently searched for dog food, joined a pet group, and bought something pet-related.
- The ad network puts me into a “look-alike” or “household” audience with my friend because we were in the same room.
- When the dog food advertiser uploads a list or bids on that audience, the system shows me an ad too, even if I've never owned a dog or searched for dog food.
It's not remotely feasible that the phones are listening to you. It'd be way too much work for way too little return when what they already have is way more than good enough. And that's before you take into account the risk of fines, jail time, and the company being dismantled by every country on Earth. It just isn't happening.