Thank you for these two exciting videos! I have not finished to watch the second one (only actually started), but I'm really happy that I was able to understand the basics despite the fact that physics is not my cup of tea, and also realised I had some wrongs concepts about quantum theory coming from some popularisation books. And I find Ark's English more understandable than that spoken by the natives. In addition he uses a lot of gestures and that helped me (maybe because I'm of Italian origin
Thank you luc for the books and videos suggestions since, as I said above, I had not read the right ones.I'm still not able to put down some thoughts about all this, but in the meantime I can recommend the very short book "Quantum Theory: A Very Short Introduction" by John Polkinghorne for those interested in the topic with no prior knowledge or mathematical skills. For a philosophical discussion about free will and quantum theory, there are three great essays about it in The Oxford Handbook of Free Will (which is a great resource for free will discussions in general). Another good one is Henry P. Stapp's "Quantum Theory and Free Will", although unlike Ark, he thinks that our individual consciousness plays a decisive role in "collapsing the wave function", following von Neumann's interpretation. But he also posits something of a Cosmic Mind to solve the problem of "the moon is still there even when we are not looking".
Finally, there is a guy on YouTube explaining and visualizing quantum physics concepts, which I find very helpful.
Here are 3 videos I liked, one about the wave function, one about the different interpretations of quantum mechanics, and one longer video explaining some core concepts like the double slit experiment and spin/entanglement (some super hilarious comments under that last one btw!):