`  ===Consensus opinion=== Summarizing the consensus opinion, we find that Orch-OR cannot be mentioned in the Microtubule article. Pursuant to this, we hold that the section #Postulated role in consciousness should not be reintroduced. While Orch-OR may have scientific validity, that is not for us to judge. We merely document the established views of the scientific community, wherein we note Orch-OR is an unproven, minority viewpoint and consequentially the subject matter of WP:FRINGE.  As  first argued, there are many hypothetical models for microtubules, including Penrose/Hameroff's ideas, cytoskeletal tensegrity, tubulin healing, microtubule luminal transport, and others equally speculative. Models like these are ``a dime a dozen``. To be mentioned in this article, an independently reviewed secondary or tertiary source must directly connect microtubules to some particular model. (e.g. a review article in Nature Reviews Molecular Cell Biology, a critically reviewed textbook on cell biology, a mention in Nature's cytoskeletal milestones). There exist no such sources for Orch-OR. Thus, it would be a violation of WP:NPOV to include any discussion of Orch-OR in Microtubule, however minor.   —  `