> Which also applies to the distributed systems - email, in context of this particular discussion. Same logic here: email works for both.
Email yes, encrypted email, no. That's the whole point. A decentralized system, as nice as it is in theory requires participation to enable widespread change. You cannot just say "now we all encrypt email" and know that everyone does. But you can change the transport mechanism of a centralized system to something encrypted and know that it works for all participants, even for those that don't care or don't know how to do it themselves.
Email yes, encrypted email, no. That's the whole point. A decentralized system, as nice as it is in theory requires participation to enable widespread change. You cannot just say "now we all encrypt email" and know that everyone does. But you can change the transport mechanism of a centralized system to something encrypted and know that it works for all participants, even for those that don't care or don't know how to do it themselves.
It's a trade-off. Again.