“The Turk,” engraving by Joseph Racknitz, 1789It’s getting harder to tell what’s real on the internet.This is less true on Substack, and we aim to keep it that way. As a first step, we’re launching a feature with Pangram in the Substack app today. Going forward, you’ll be able to scan text to see how much of it was likely written by hand or with AI assistance. More on that in a moment, but first let me explain why this matters.There is an increasing share of text on social media that is generate...