Quantum computers are not magical. Even assuming we had them, so what? Congrats, now you can compute NP complete problems in quadratic time. Have fun breaking the NSA's cryptography. Quantum computers don't have God's phone number and don't connect you to the rest of the universe. For that last bit of silliness Penrose and Hameroff invoke quantum gravitation, a subject that has eluded the very best physicists to date. There is no working theory of quantum gravitation, so even the real scientific hypotheses that underpin Orch-OR are unproven.
On the other hand, we can disprove it fairly simply. Aside from MRIs being lethal, we should also have to worry about those pesky gravity waves that LIGO only managed to detect a couple of years ago. We get a few descent sized events, detectable by LIGO and similar facilities, every few months. Smaller events below the current levels of detection should occur daily. All of these should render you unconscious at the very best.
Happily, we don't fear fridge magnets or gravity waves because that isn't how our brains work.
On the other hand, we can disprove it fairly simply. Aside from MRIs being lethal, we should also have to worry about those pesky gravity waves that LIGO only managed to detect a couple of years ago. We get a few descent sized events, detectable by LIGO and similar facilities, every few months. Smaller events below the current levels of detection should occur daily. All of these should render you unconscious at the very best.
Happily, we don't fear fridge magnets or gravity waves because that isn't how our brains work.