Veritasium’s recent video challenges the CIA’s so‑called "Ghost Murmur" long‑range heartbeat sensor, citing expert input from the University of Basel and Fraunhofer Institute. The film details how nitrogen‑vacancy diamond sensors, the core of the claim, fall short of detecting a pulse from 60 km.

Scientists from Vanderbilt and Stanford explain that magnetocardiography requires distances under a few meters to capture the tiny biomagnetic field. Even with advanced NV‑center technology, the field strength at 60 km is below the sensor’s noise floor, rendering the CIA claim implausible.

The debunking underscores that sensational headlines can spread misinformation about quantum sensing. By exposing the physics limits, the video reminds engineers that practical applications of NV diamonds remain in labs for cardiac imaging and quantum computing, not covert surveillance.