I'll make a statement that may jar the sensibility of some that will read it. But here it is anyway. There can be no such thing as true randomness. Every process one can think of as a predicate to "randomness" will be flawed. Generally speaking everything in the universe is in some way affected by something else. On a more specific note the simple act of trying to probe, measure or test some process for true randomness will have an effect on the outcome by imposing some type of bias.

So the search for randomness needs to be tempered with "what is good enough".

Michael Karas