Christian Langalis holds up a yellow notepad reading "Buy Bitcoin" behind Federal Reserve Chair Janet Yellen during her Congressional testimony on live television. The image goes instantly viral. The Bitcoin community donates over 7 BTC to his public address in gratitude. Langalis becomes a folk hero, and the original sign later sells at auction for $1 million in 2024 — proving the sign's own advice was sound.
CNBC: Buy Bitcoin Sign at Yellen Testimony