Nine of Paul Krugman's ten nearest neighbors by audience shape are journalists — a near-total alignment with one subcategory that leaves almost no room for anything else. Similarity here measures how closely two entities' audiences resemble each other in composition; scores across the top 10 run from 0.99 down to 0.99 in a tight band, the defining feature of a flat shape.

Maggie Haberman leads at 0.99, followed by David Fahrenthold (0.99), Glenn Thrush (0.99), Jane Mayer (0.99), and Josh Marshall (0.99) — all journalists, all within a fraction of a point of one another. The flat shape means no single neighbor pulls away from the pack; the story is the uniformity of the cluster, not any one standout. The sole exception in the top 10 is Andy Borowitz (0.99), a comedian, whose presence at position 11 of the visible set is the only subcategory break in an otherwise wall-to-wall journalist neighborhood. No other academics appear in the top 10 — Ian Bremmer, the one fellow academic in the broader results, sits outside the top 10 in the similarity ranking.

The pattern is cross-kind in a specific direction: Krugman's subcategory is Academics, yet his nearest audiences are shaped almost entirely by journalists and the readers who follow them — a cluster defined by political reporting and commentary rather than by academic peers.