[amelius]

I suspect that "better randomness" is not what this solves, but rather faster randomness.

A PN junction gives you only megabits/s of randomness at most.

This proposed method, if the article is correct, reaches gigabits/s.

But it could be because they are just using a large array.

[rainsford]

I'm sure I'm overlooking something, but what's the real use-case for true random number generation at that fast of a rate? Even a few Kb/s of random numbers is enough to continually reseed a cryptographic pseudo-random number generator that will generate as much output as you want that's indistinguishable from true randomness. I suppose you aren't reliant on the security of the underlying cryptographic primitives then, but you're still reliant on the particular hardware RNG chip being implemented in a way that's free of bias even if the underlying physics principle is sound.

[amelius]

One thing is for sure, nature has no shortage of randomness. So indeed it seems difficult to find advantages of a new method.

In any case, a PRNG might be a no-go for many applications, out of principle.

And also, maybe a PRNG requires more power and die area than this new method?