>So if you want to be "as good as PGP", there is no need to learn those concepts.
Sure, but we really have to aspire to be better than PGP. We are obviously missing the point if we are wasting time on new features when no one can use the old features.
>The "safety numbers" concept does need to be learned, but I think it is way easier to explain than PGP key management.
If the question is "why do I have to care when the safety number changes" then the answer still involves the basic concept of cryptography identity in both cases.
Sure, but we really have to aspire to be better than PGP. We are obviously missing the point if we are wasting time on new features when no one can use the old features.
>The "safety numbers" concept does need to be learned, but I think it is way easier to explain than PGP key management.
If the question is "why do I have to care when the safety number changes" then the answer still involves the basic concept of cryptography identity in both cases.