obviously what you vaguely describe has been around since 1945.

That home assistant devices are constantly listening and feeding back marketing data on every conversation is patent and disproven nonsense.

they have done packet sniffing investigations, they have disassembled the devices, they have run meters on the electrical charges... everything in every way you can imagine.

But even if you just think about it for a second - processing a live audio feed at a rate of 1 second per second indefinitely and correlating that data via voice recognition to your Google profile all to... make your ad personalizations... worse? more inaccurate?

like what the hell is the perceived benefit? That my wife says, "oh my dad found my old barbie house!" while at my neighbors house and my neighbor gets served barbie ads? Why would Google want that?