If we want anyone to spend their time, attention or money on anything of ours, we must first be competent.
Lots of people are competent, so there's lots of competition here.
Let's say this is "school teachers"

The DICE Framework: (thread)
— Jack Butcher (@jackbutcher) January 28, 2021
I just shared this idea in "How to Build a Personal Monopoly" w/ @david_perell
Here it is again.
\u2193 pic.twitter.com/z7HzfkTJX4
One thing I've been noticing about responses to today's column is that many people still don't get how strong the forces behind regional divergence are, and how hard to reverse 1/ https://t.co/Ft2aH1NcQt
— Paul Krugman (@paulkrugman) November 20, 2018