Editor’s note: Every Past Passport article has an AI section at the bottom. Today's covers Habsburg AI — what happens when AI trains on AI-generated content and the writing gets worse over time. I learned how to avoid it. So can you. If AI isn't your thing, skip it.

Reactor 4 at the Chernobyl nuclear plant exploded in Ukraine on April 26, 1986. At 1:23 a.m., an explosion equaling 60 tons of TNT tossed the reactor’s 1,000-ton concrete lid into the air like a flipped kopeck coin. Nearly 7 tons of uranium fuel — cesium-137, strontium-90, iodine-131, plutonium-239 — sprayed miles into the atmosphere.
An ominous blue light rose into the clouds, visible for miles. Cherenkov radiation, the glow of an exposed reactor core, beautiful and lethal. Residents of Pripyat stood watching from the streets and nearby bridges, some holding their children in their arms, …



