Hello, all -- I feel as if I've only really been exposed to classical physics thus far, and I want to educate myself a bit further. What really puzzles me the most is the concept of randomness, which I've always attributed to an inability to measure all variables involved with the outcome. The more information we know about a system's properties/variables at a given point in time, the more we know about that system at a given point in a future based on various laws of physics. I'm familiar with the Heisenberg Uncertainty Principle but I feel like it's an "older" view. My current understanding is that trying to find the position of something is like searching for a blimp in a dark room -- by the time you find it, you've already touched/moved it. But I suspect the Principle is something far more fundamental than "interfering" via observation. I do not understand how QM is thought to somehow be "truly random" at some level or if there are simply other variables we haven't found yet. I know that the "hidden variables" argument is rendered very unlikely by other rules, but I have never really seen the full argument. Simply speaking, I want to know what is *known* in QM and what is still debatable/up to speculation. Apologies if my questions make no sense. Simply put, I'm here to learn and would love some guidance in the right direction. I want to erase any misconceptions I have and replace them with more up-to-date ones.