From a practical point of view radioactive decay is totally random, but that’s only because we lack the tools to get inside to see exactly what's going on. That may not ever change for us humans, but I wouldn't bet against it. Scientific discovery is all about de-randomizing mysterious things and is based on the assumption that nothing is really random, just currently not understood.
You don't know that. It may be, as I said in my previous post, that we just haven't identified an underlying deterministic process, but it also may be that it truly is a random process. If the conventional quantum theory is correct, then then the natural process TRULY is random.
That may not ever change for us humans, but I wouldn't bet against it. Scientific discovery is all about de-randomizing mysterious things and is based on the assumption that nothing is really random, just currently not understood.
Just because we apply random models to processes that we know we don't understand, or to simplify complicated processes, do not let that make you believe that "random" is the same as "not understood".