Not disagreeing that it must work, however, I think immunity is possible with a simple heuristic: Say no to all inbounds. Or more specifically, if you get a ca

Not disagreeing that it must work, however, I think immunity is possible with a simple heuristic: Say no to all inbounds. Or more specifically, if you get a call and it's not from someone you know then you simply hang up. Relevant information comes from you seeking it out, not the other way around.