[Iwan-Zotow]

> If you have enough entropy to fill a high entropy RNG, why not use all that entropy to generate the output in the first place?

Problem is the entropy generation rate. PRNG even with large space typically is running at 10 or better Gbit/sec. PCG with 256/64bit could generate decent numbers at 50Gbit/sec

[contravariant]

That's not entropy that is data. You fundamentally can't increase entropy, hence why they wanted to use a PRNG with a big internal state so they can put more entropy in.

So if your argument is that you want a big entropy PRNG to get more possible outputs then the generation rate can't be the problem because that's entirely dependent on you being able to generate a big enough seed.