TIL lava lamps can be used for cryptography —camera footage is used as unpredictable input for a random number generator. https://blog.cloudflare.com/randomness-101-lavarand-in-production/
@erinbee Their offices (with the lava lamp wall) have been weirdly vacant the last few times I have walked by there though, I wonder if they're just using store-bought entropy these days
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