In the wake of the latest Proton ... noise ... I see a few people taking the opportunity to complain about the fundamental insecurity of email. Which on one level is fair, but on another it misses the point.

There has been *no end* of practical ideas to fix email. The rock they have all (so far) foundered on is backwards compatibility with Microsoft. If not for Microsoft, email security would have been a solved problem decades ago.

/rant