This of course can't expand far AND requires EXTREME levels of trust among those involved. 1/
You of course assume the risks of anyone you choose to have contact with. 2/
There are acquaintances, there are friends, and then there are friends you trust with your life. 3/
That list gets much smaller when I don't know everyone they are interacting with and the precautions they're taking. Ugh, this hurts my brain to think about. 5/
Anyone thinking about this that wants to share? /FIN
This is NOT a recommendation, it's just an interesting thought exercise. Again, when risk is high and absolute trust is low, it's hard to see this actually working at scale.