PRNGs are not good mixers because they're not designed to be. - A PRNG takes a pseudo-random state and produces another pseudo-random state - A mixer takes po

PRNGs are not good mixers because they're not designed to be. - A PRNG takes a pseudo-random state and produces another pseudo-random state - A mixer takes possibly correlated inputs and must produce outputs as uncorrelated as possible. I've actually experimented with using xorshift variants as mixers and they fail the basic statistical tests.