I never cared for any of his crap until last year when he deep dived into tech. The tech videos are good, he is a generally entertaining person. The dude has unlimited time and too much money, so he gets crazy deep in the weeds. It some ways I would say he is more competent that a lot of engineers. The self-hosted LLM videos are a good start.

That is how Bluetooth works. Its open and scanning for your devices. And another devices nearby too. If you ever ride public transit you notice that random device try to auto pair with your phone.