This isn't about QC per se, but probably my craziest / least accepted scientific or philosophical ideas are those that I expanded on in a long essay called "The Ghost in the Quantum Turing Machine": https://arxiv.org/abs/1306.0159

If I actually believed something about quantum algorithms, complexity, etc. that none of my extremely smart colleagues believed, that would almost certainly cause me to reconsider. I'm a sheep that way.