No one needs a random source that meets statistical properties unfiltered; you just need something good enough that can be filtered, compressed, and distilled i

No one needs a random source that meets statistical properties unfiltered; you just need something good enough that can be filtered, compressed, and distilled into a few unpredictable bits. 256-512 high quality bits are enough to seed everything else for an indefinite period of time. If your random source only has ~0.1 bit-per-byte of entropy but can produce 30,000 biased bits quickly, that's enough to seed the system. https://blog.cr.yp.to/20170723-random.html https://blog.cr.yp.to/20170723-random.html