<div dir="ltr"><br><div>Hi Dylan,</div><div>It matters because of the fact that you can invert the perception of red green anywhere along the perception chain, as illustrated in <a href="https://canonizer.com/videos/consciousness/">this video</a>. This video is modeling both the strawberry, and knowledge of a strawberry. This knowledge can have either the redness or grenness quality, for the same red, depending on whether it is inverted or not.</div><div>In other words, robot number 2 is purposely designed to have this inversion from robot number one. Yet they can still both pick "red" strawberries, despite having knowledge of the same strawberry that has differing physical qualities.</div><div><br></div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Feb 13, 2020 at 1:22 PM Dylan Distasio via extropy-chat <<a href="mailto:extropy-chat@lists.extropy.org">extropy-chat@lists.extropy.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>I'm not trying to be dense, but I really don't understand how you are defining physical quality here. I understand that because of issues with pigmentation in my cones, my eyes see two shades as the same regardless of the wavelength. This is fed downstream from the vision processing system to some point in the neural architecture where an equivalent response is delivered. </div><div><br></div><div>Why does there have to be anything below the level of knowing that the brain displays objects with one wavelength as red and one as green when the cones are working properly. Red and green are just two labels for an underlying physical response brought about by processing through various connected regions of neurons in a larger network. Why do qualia need to be brought into it? How do you know that we're not operating with something comparable to the pure numbers (although it doesn't have to be through the same method of processing as the robots, and may not be mathematically based) you just gave John as an example. Our eyes have evolved to distinguish what we're calling different colors once cones there are activated by interactions with light reflected off of objects at different wavelengths. Downstream, this is translated into different qualities corresponding to what we are labeling as different colors.</div><div><br></div><div>I understand that a brain in the vat can be made to think it is perceiving a red object in its field of vision if the right nerves/neurons are tickled, but I still don't see how that leads to a requirement that there is something unique about the substrate.</div><div><br></div><div>I am still failing to see evidence for your argument that consciousness (whatever that is) is not substrate independent. </div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Feb 13, 2020 at 3:02 PM Brent Allsop via extropy-chat <<a href="mailto:extropy-chat@lists.extropy.org" target="_blank">extropy-chat@lists.extropy.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div> The reason you are blind to these differences in this case, is because your brain uses the same physical quality to represent both of those colors, making it impossible for you to be consciously aware of their difference. The qualities of knowledge has nothing to do with the retina or the light, as all this knowledge can exist in a brain in a vat, in a dark room, with no eyes, as long as you stimulate the optic nerve identical to the way the eye would.<br></div><div><br></div></div>
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