https://en.wikipedia.org/wiki/Hardware_random_number_generator https://en.wikipedia.org/wiki/Hardware_random_number_generat... > and even the nuclear decay (du

https://en.wikipedia.org/wiki/Hardware_random_number_generator https://en.wikipedia.org/wiki/Hardware_random_number_generat... > and even the nuclear decay (due to practical considerations the latter, as well as the atmospheric noise, is not viable except for fairly restricted applications or online distribution services)