Well I think relativity tells us something more fundamental, that the world emerges as interactions from relative frames of reference, even in the quantum realm. It’s easy to forget, every single thing going on is a quantum system with astronomical complexity, complexity of a system is the square of the number of quantum states in the entire system. A molecule is a quantum system, a cell is a quantum system, a tree is a quantum system, a tree rustling in the wind is a quantum system. A person interacting with another person for example is entangling those systems and is itself another quantum system. And I don’t think entanglement is a binary thing, it’s a thing of degree and quality. You’re influenced by everything in your light cone, even if you’ve never directly observed a specific star for example, you still interact with it to some degree, you’re a part of a quantum system composed of the entire observable universe, and even part of the unobservable one. Once you observe it, now your interaction is more than that. You can picture it in your mind, look for it again later, tell people about it. If you could orbit it, or touch it, you’d get entangled with it even more. I think a lot more about our experience than what we realize consciously is quantum phenomena, I think we experience these phenomena directly but we just take for granted those experiences and don’t realize what they are fundamentally, just like someone who doesn’t understand gravity doesn’t realize that the experience of falling from a tree is the same force as the one that keeps the planets moving around the sun.