[lmm]

Well, the mathematics describes reality. If humans can't agree about whether one way of interpreting the mathematics in human terms is more or less complex than another way of doing so, then that's a human problem and potentially insoluble. But I don't think things are actually that bad: people are generally capable of reaching consensus about what a given piece of mathematics "means", and the relevant cases here are pretty clear-cut: either we interpret the wavefunction as being physical reality, or we interpret some derived structure as being physical reality, and the latter gets us further away from the wavefunction.