I believe this has been done for decades - am I wrong? Even Lava lamps have been used for rng (https://en.wikipedia.org/wiki/Lavarand https://en.wikipedia.org/

I believe this has been done for decades - am I wrong? Even Lava lamps have been used for rng (https://en.wikipedia.org/wiki/Lavarand https://en.wikipedia.org/wiki/Lavarand).