On 2020-08-17, at 18:43, John R. Levine <johnl@xxxxxxxx> wrote: > > And on the third hand, in a world of streaming video, the total storage and bandwidth that mail uses, bloat and all, is a rounding error. I’m more concerned about human bandwidth (*). So if we can find a closer proxy for how much human bandwidth a set of messages consumes, that would be useful. Starting with not counting headers certainly is. BTW, modern mail readers typically can “mute” a conversation, so in many cases, if the subject is *not* changed in a sudden logorrhea, the human bandwidth consumed can be 0. Grüße, Carsten (*) and, yes, I do recognize there is also emotional bandwidth. But that is very hard to measure. Again, muting may help.