Reason #37,758 that centralized communication services are, at the very least, suboptimal, and at worst, are a matter of life or death. More generally, we need

Reason #37,758 that centralized communication services are, at the very least, suboptimal, and at worst, are a matter of life or death. More generally, we need to stop supporting client-only systemts. Cell phones, for instance, could have a fallback peer-to-peer mode, if the carriers would allow it. Unfortunately, being a choke point tends to make more money than building resilient systems.