Austria is in a pretty privileged situation here. There is almost no chlorine added to the water. Because of the alps we have a lot of fresh drinking water sources.
0/0 is undefined because everything would be a valid result. 0/0 is basically finding solutions for 0*x=0 and everything you put into x would satisfy the equation.
The lava lamps are just a gimmick and evening filming a white wall (as long as the video is not overexposed) would be just as random/secure because of the avalanche effect of cryptographically secure hash functions and the thermal noise of cameras.
Würd's schön finden wenn das klappt, aber gab es in Deutschland in den letzten Jahren nicht schonmal solche Vorhaben und dann ist man wieder zurück zu Microsoft?
It actually is secure enough if the group is not full of complete idiots that invite journalists without even noticing 🤣