[adrianN]

To get rid of the randomness you have to have prepared the result of every decision that is currently attributed to randomness in a big lookup table.

[joycian]

Why would that be necessary if there are local deterministic propagation rules, that have been there since the beginning?

[adrianN]

Because local, deterministic rules don't agree with experimental observations as far as I understand quantum physics. You can have either local, or deterministic, but not both without superdeterminism, i.e. the giant lookup table, or instant communication.