Thanks Brett, I define it as the wavelength of light detected at 700 nm by a spectrometer, and whichever culturally accepted normative label word or thought label attributed to the perception associated with that wavelength. From an evolutionary view, the inversion problem is ad-hoc, beyond anything we would expect in individuals with common ancestry, requiring unfounded suppositions and assumptions. It also lies and outside of the realm of testable hypotheses, and so I would consign it to intractable imponderables and is something I would prefer to not define a theory of mind in reaction to or base one upon. On Thu, Sep 17, 2020, 6:56 PM Brent Allsop <[log in to unmask]> wrote: > Hi James, > > On Thu, Sep 17, 2020 at 4:41 PM James Lyons-Weiler < > [log in to unmask]> wrote: > >> We can define redness as reflection or emission of light with wavelength >> around 700 nm.h >> > > Perception of red can be inverted, or redefined, anywhere in the chain > that is perception, including before or after the retina. > > Click on the 5. “Perception Inverted” section of this video > <https://urldefense.proofpoint.com/v2/url?u=https-3A__canonizer.com_videos_consciousness_&d=DwMFaQ&c=eLbWYnpnzycBCgmb7vCI4uqNEB9RSjOdn_5nBEmmeq0&r=HPo1IXYDhKClogP-UOpybo6Cfxxz-jIYBgjO2gOz4-A&m=cWyfIMat8ERD2GLzvTk9s9PlbNlTZJ3VO2XaJO8zM2s&s=HV5dLqeqSnjzIPGt_8YLW7maKkzXA778nL9gYPz71NI&e=>, > to see this problem illustrated. > [image: image.png] > > > > > > The only difference between these two people is they have a red green > inversion, somewhere in the chain of events that is their perception. > > > So how do you define the quality of 700 nm light? Based on the quality of > the knowledge of the person on the right, or the knowledge of the person on > left? > > The only reason we define a 'red' intrinsic quality according to light, is > because that is the last point in the chain of perception that is easily > invertible, before it gets into the body. > > > > Brent > > > ############################ > > To unsubscribe from the TOK-SOCIETY-L list: write to: > mailto:[log in to unmask] or click the > following link: > http://listserv.jmu.edu/cgi-bin/wa?SUBED1=TOK-SOCIETY-L&A=1 > ############################ To unsubscribe from the TOK-SOCIETY-L list: write to: mailto:[log in to unmask] or click the following link: http://listserv.jmu.edu/cgi-bin/wa?SUBED1=TOK-SOCIETY-L&A=1