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I've always known that the human brain is *way* too eager to find patterns in random noise.

But there's something about watching my brain automatically attempting to construct meaning out of random program output – output that I *know* is random because I wrote the program! – that really drives that point home.

@wizzwizz4 @codesections wouldn’t that be either because:

* of rounding?

* your random numbers generator is not that random when three numbers in a row are taken as coordinates?

@wizzwizz4 I am curious. Do you have further reading on that subject?

@ashwinvis the pseudo random number generator (PRNG) used for the GIF is described here : https://en.wikipedia.org/wiki/Linear_congruential_generator

And one possible analysis on a PRNG is the « spectral test » that you can apply on two or more dimensions, see https://en.wikipedia.org/wiki/Spectral_test

wızzwızz ıv@wizzwizz4@fosstodon.org@codesections Sometimes, though, the pattern *really is* there. See https://upload.wikimedia.org/wikipedia/commons/a/a3/Lcg_3d.gif for an example.