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by avadodin 228 days ago
The paper that triggered this thread "breaking" PCG sees it as potentially in the same class of issues as using RANDU.

> our results […] do mean that [PCG']s output has detectable properties. Whether these properties may affect the result of Monte-Carlo numerical simulations is another matter entirely.

Again this is on PCG which required a breaking effort.

The short version of Xorshift as originally presented by Marsaglia outputting its whole state for example is bound to have behaviors like my room-generation example emerging fairly easily. Particularly, with low hamming-weight states.

I doubt Xoshiro's output is that bad but if presented as trivial to recover vs PCG, that to me indicates potential issues when using the output for simulation.