Brad DeLong's Grasping Reality • 138 implied HN points • 19 Nov 25
- The platform is walking a tightrope: it needs discoverability to help writers grow paying audiences without turning into an ad-driven attention machine that just maximizes time on the app.
- The new Notes/social feed creates real risks — its algorithmic tuning can push short-form engagement at the expense of longform newsletters and amplify extreme or divisive voices, making moderation and content choices thorny.
- Substack (and rivals) need transparent, data-driven experiments with adjustable dials like teaser samples, patronage/tips, and premium perks so writers can sustainably earn while protecting an open public-good core.