Right, in classical QM. But in superdeterminism unless I'm really misunderstanding, they are basically saying that there are no probabilities at all because ev

Right, in classical QM. But in superdeterminism unless I'm really misunderstanding, they are basically saying that there are no probabilities at all because everything is predictable given the initial conditions of the universe, if you knew the hidden variables. Any "probabilities" are just what one observes to happen, but they aren't doing anything any more, they are just the result of incomplete knowledge. If you knew the hidden variables, you would be able to predict everything exactly and there would be no probabilities as such. In that case, what is creating the interference pattern and why?