I understand that PGP doesn't have to be used with email. That is why I haven't commented on PGP, I'm saying that I think encrypted email is a bad idea, regardl

I understand that PGP doesn't have to be used with email. That is why I haven't commented on PGP, I'm saying that I think encrypted email is a bad idea, regardless of whether you use PGP or something else. We're posting in a thread about Thunderbird, an e-mail client :) I agree that one great weakness of Signal is its centralization, and that decentralization is a great strength of email. For a decentralized encrypted communication channel, Matrix may become a good option now that it is encrypted by default, but I haven't studied carefully the quality of its encryption beyond that yet. Regardless, I really do think a new protocol is required for secure communications and that email won't cut it. If Signal or Matrix can't do the job for some applications, we'll just have to try again. I cannot recommend email for secure communications, and in any situation where security matters, I have to prioritize people's safety. In terms of security, the best that is available in the realm of encrypted email is not and cannot be good enough.