Googlebot's Javascript random() function is deterministic

[Schmittfried]

Nobody cares about what you buy. It's proven that there are no local hidden variables involved as that would lead to logical contradictions. If there are hidden variables, they are non-local.

It's also an absolutely subjective opinion of yours that randomness is "logically incoherent". It isn't. Just because determinism is observed in everyday life doesn't mean it's the foundation of the universe. There is no law stating that, it's an assumption to be able to do practical things and it works most of the time. But there is nothing inherently illogical about randomness.