It's striking how much modern advice on time management, productivity, "lifehacking" and suchlike are mere footnotes to Drucker: he said it already, and more concisely.
I saw somebody else say it more concisely, which is simply, deep learning does not equal AGI (AGI is "artificial general intelligence").
As Cooly G concisely says, "it changed a lot".
"But Jandl said it differently from the lyric poets of our epoch, he said it more concisely, and more originally and thereby more suggestively".
If you can't say it, clearly and concisely, then they will have more trouble understanding and executing it.
Mayor Bloomberg came out Friday with a strong statement about gun control, saying it was time the two candidates spoke clearly and concisely about their plans for gun control.
That's to say it still has name and address, opening courtesies (usually), a high respect for grammar and structure, and the views and arguments concisely presented (mostly) at a length commensurate with what can be published in the space allowed for a letters page.
A subject line is a headline -- and as they say in the news business, "Don't bury the lead". Make it concisely say why recipient should care about your message the first time they see it, and what / when follow up is needed.
In fact, much of all this was said more concisely and wittily in Mad Men.
