You state this like an obvious fact, but it is only obvious if you either heard of something like this, or you've been through it. From that point on I am sure he knew to do that. What's obvious to you can also just be…
At least with the recent Pixels there's an option to have your phone listen 24/7 and tell you what music is playing. Probably difficult to distinguish this tower from a homeless guy sitting in a subway station listening…
You state this like an obvious fact, but it is only obvious if you either heard of something like this, or you've been through it. From that point on I am sure he knew to do that. What's obvious to you can also just be…
At least with the recent Pixels there's an option to have your phone listen 24/7 and tell you what music is playing. Probably difficult to distinguish this tower from a homeless guy sitting in a subway station listening…