What are pseudo-random numbers? What’s wrong with them?
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[Here](https://en.m.wikipedia.org/wiki/Spectral_test#/media/File%3ARandu.png) is a nice demonstration of how pseudorandom numbers are not properly random. A graph of truly random numbers would just be lots of dots evenly distributed in the cube, instead what we see are a series of planes that all the numbers fall on.
Properties like this can be exploited, imagine this random number generator was being used for a lottery. Any ticket that falls on a plane has a higher than expected chance of winning, any ticket that doesn’t fall on a plane cannot win ever.
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