[dahart]

The article agrees, but of course it’s making a slightly different point and talking about what kinds of randomness are practically or even theoretically predictable today given what we know. Since nobody knows how to predict radioactive decay, it’s currently considered “truly” random, but its status could change in the future.

“Arguably then, from a truly omniscient perspective, nothing, not even the physical world, is truly random—it is in the nature of causality that everything that happens has a chain of prior events that caused it. But in practice, for most real-world randomness, obtaining such an omniscient perspective is infeasible to the point of being impossible.”