Comment by fidotron

We need a system so pervasive that if you order random devices from aliexpress they use it, and they cannot cause trouble because they're properly contained. It's not enough for you to have good security, you need to know your neighbours do too.

My vision of how this should work can be inferred from https://github.com/atomirex/umbrella Essentially in the future wherever we have WiFi APs those should also be media SFUs (and probably MQTT brokers or similar) where each client will only see the AP and things the applications running on the AP have explicitly allowed, including streams piped opaquely from anywhere else.

The idea that being connected to WiFi means ability to see other devices and the public internet needs to stop being the default.