The problem is not merely homogeneity of topic, but homogeneity of substance. If you have to publish a newsletter every week, you don’t have the room or incentive to take risks.

Organic sharing, growth and virality exposes readers to a wide variety of authors, serving up the best of each one’s writing. On Substack, instead of getting the best 1% of posts from 100 authors, you get 100% from each one.