Randomness is a weird concept, because if you roll a die it's random right? Unless you have all the physical variables - roll speed, angular velocity, height, s

Randomness is a weird concept, because if you roll a die it's random right? Unless you have all the physical variables - roll speed, angular velocity, height, shape of die, air resistance, air movement, temperature, etc to work out where it will land. So randomness is more a lack of knowledge. Randomness is that you are not sure. And I don't know enough about quantum mechanics to even comment on that, but that's some weird shit too!