Citation strongly needed. I do understand that the wake word processing happens in a special kernel in a low power state, however.... The wake word is a train

Citation strongly needed. I do understand that the wake word processing happens in a special kernel in a low power state, however.... The wake word is a trained kernel, it can be trained to listen for a huge set of things (as seen in the Pixel's passive song detection), so they would just train the kernel to detect a large targeted (marketing?) vocab. about being "lit up" constantly? I'm not saying you are wrong, but I'd really like to see a citation that this is true. Is it true for both echo and home? And while Packet Sniffing can disprove that it's listening and sending whole audio to the cloud, it can't disprove that it's listening for a huge set of "wake words" and toggling bits in other control messages to track users in more subtle ways.