What are the most puzzling quantum mechanics paradoxes and how might they be resolve

[JohnB]

Quantum mechanics paradoxes have challenged physicists and philosophers for a century. From Schrödinger's cat to the EPR paradox, these thought experiments highlight the strange nature of quantum reality. I'm curious which quantum mechanics paradoxes you find most intriguing and how recent research might be resolving them. Do you think quantum foundations research or quantum gravity research will ultimately solve these quantum mechanics paradoxes? And how might they relate to consciousness and quantum physics?