The frustrating thing to me about current sharing/observing of data is that everything is a “trapdoor”: if your data leaks out, there is probably no way to rega

The frustrating thing to me about current sharing/observing of data is that everything is a “trapdoor”: if your data leaks out, there is probably no way to regain control (“privacy panels” are nothing but a feel-good measure that still depends a lot on bug-free software and the goodwill of others). You only need to fail to protect your privacy once, and after that it almost doesn’t matter what you do. We must rethink infrastructure to the point where the only data that we transmit is data that is inherently useless after a time. If I do something like revoke my key, it should be impossible for anyone to further use that data. Expiration dates should be baked directly into protocols so that revocation of keys and expiration are the same thing: either I revoke my key myself, or my software revokes it for me but no one else (and their buggy or insidious software) gets to decide how to respect the expiration time.