You would also need to eavesdrop on a geiger counter in Singapore that's measuring radiation, and a chaotic pendulum in London: https://www.fastcodesign.com/901

You would also need to eavesdrop on a geiger counter in Singapore that's measuring radiation, and a chaotic pendulum in London: https://www.fastcodesign.com/90137157/the-hardest-working-office-design-in-america-encrypts-your-data-with-lava-lamps https://www.fastcodesign.com/90137157/the-hardest-working-of... The effort involved in doing this would maybe be as taxing as brute-forcing the keys in the first place. It seems gimmicky but they're almost surely producing reliable random data that would be almost impossible to simulate otherwise.