Dr. Hameroff’s research focuses on the role of microtubules—protein structures within cells—in consciousness. He proposed, alongside Sir Roger Penrose, the Orch OR (Orchestrated Objective Reduction) model of consciousness in the 1990s. This theory suggests that consciousness arises from quantum computing processes within the brain’s microtubules, with influences from the fundamental structure of spacetime at the quantum level. According to the model, this could explain phenomena like perception, self-awareness, and potentially even spirituality and the afterlife, connecting consciousness to the basic fabric of the universe.
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Dr. Hameroff’s research on anesthesia showed that unconsciousness happens because of changes in microtubules, and he started to think that these structures might also be involved in creating consciousness. Instead of focusing on neurons, or the brain’s nerve cells, as the main units of consciousness, Hameroff looked deeper at the tiny tubulins inside microtubules.
Microtubules are part of the cell’s cytoskeleton, which helps the cell hold its shape and divide. They are made of tubulin proteins and are found in many cells in the body.
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In his 1989 book “The Emperor’s New Mind,” Penrose suggested that consciousness is quantum, not computational, like many other theories had proposed. However, Penrose didn’t have a biological explanation for how quantum effects in the brain could create conscious experiences.
Hameroff remembers saying, “Damn straight, Roger. It’s freaking microtubules.” Soon after, Hameroff teamed up with Penrose, and they worked together on one of the most interesting—and debated—ideas in studying consciousness. This became known as Orchestrated Objective Reduction theory (Orch OR), which claims that microtubules in neurons cause the quantum wave function to collapse, a process called objective reduction, which leads to consciousness.
https://newstangail24.com/this-man-claimed-the-brain-creates-consciousness/
If Orch OR is correct, AI will never be conscious—because silicon-based computing lacks both the organic structure and access to spacetime’s quantum geometry. It can simulate awareness but not generate qualia (subjective experience).