Back in 2017, a law student named Lena Khan made waves in policy circles with the publication of her massive, brilliant, game-changing 24,000-word article in the Yale Law Journal, Amazon's Antitrust Paradox, which revisited the entirety of post-Ronald-Reagan antitrust orthodoxy to show how it had allowed Amazon to become a brutal, harmful monopoly without any consequences from the regulators charged with ensuring competition in our markets. Now, Khan (who is now a Columbia Law fellow) is back with The Separation of Platforms and Commerce -- clocking in at 61,000 words with footnotes!