[newpavlov]

I would say it differently. Suprdeterminism opposes to the deeply ingrained assumption that we can design experiments in a way which removes influence of a measurement apparatus (including experementators themselves) on the measured process.

[rcxdude]

It's more than that, though. Just 'having an influence' on the measured process doesn't explain the bell inequality. Super-determinism basically requires that there is some common state from the big-bang which means that if I were to decide to e.g. seed the random number generator I'm using in an experiment with a description of what I had for breakfast that morning, the particles in that experiment (which could in principle come from far enough away they had no way of causally interacting with me or said breakfast) somehow 'know' that I had made that decision, what I had for breakfast, and the details of the random number generator and act accordingly. Absent some mechanism by which this might occur, it requires an incredibly complex kind of setup to the universe to create that result, one that has so many free variables it could explain almost any universe with any physics.

[newpavlov]

It's not a some sort of particle conspiracy. The idea is not so different from the Laplace's demon. We have an initial state of the Universe at the moment of Big Bang (a PRNG seed, if you will) and a set of differential equations (QM is not different in this regard). Theoretically, it allows the demon to predict everything in the Universe. The wave nature of QM equations introduces a certain quirk to it, but, effectively, with your example the breakfast was already "preordained" at the moment of the Universe creation.

Surprisingly, this idea makes many physicists very umcomfortable and they start to object to SD using philosophical arguments about "free will".

[rcxdude]

It should make anyone uncomfortable (a trait it shares with all other known interpretations of QM). It implies a degree of correlelation across many different levels of abstraction which basically nothing else in physics does. As the name implies it's not just an abstract sense of determinism but one which tips the scales of everything at every level towards a specific outcome.

[newpavlov]

>one which tips the scales of everything at every level towards a specific outcome

According to the SD, this is nothing more than an artifact of splitting an entagled system into an "observer" and an "observed" parts. The linked video covers this part relatively well, the "randomness" of quantum measurment is nothing more than an artifact of artificial split of the Universe done by humans.