According to quantum mechanics there is plenty of true randomness around. If you get an electron or ion and pass it through a Stern-Gerlach apparatus [1] or a p

According to quantum mechanics there is plenty of true randomness around. If you get an electron or ion and pass it through a Stern-Gerlach apparatus [1] or a photon and pass it through a polarising beam splitter. Then in each case you can set it up so you get the thing going in 1 off two directions with 50:50 probability. [1] https://en.wikipedia.org/wiki/Stern%E2%80%93Gerlach_experiment https://en.wikipedia.org/wiki/Stern%E2%80%93Gerlach_experime...