<div dir="ltr"><br><div>To me this question reveals why you are so confused. The only thing that matters is the quality of the knowledge, which is black. Everything else is unrelated, or at best causally upstream from the quality of this black knowledge rendered by our perception system.</div><div>You always focus on everything but what matters.</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Mon, Jul 6, 2026 at 6:27 AM John Clark 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 dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jul 6, 2026 at 6:37 AM Ben Zaiboc via extropy-chat <<a href="mailto:extropy-chat@lists.extropy.org" target="_blank">extropy-chat@lists.extropy.org</a>> wrote:<br></div><div dir="ltr" class="gmail_attr"><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">A<i><font face="georgia, serif" size="4"> question for Brent:<br>
<br>
These 'fundamental physical qualities' that you believe in, how do they relate to what I said about 'red' being a category of colours rather than an actual colour?<br>
<br>
Do you think there's a different 'quality' for each of the thousands of different reds that we can see, or just one kind of 'essence of red' quality that applies to them all?</font></i><br></blockquote><div><br></div><div><font size="4" face="tahoma, sans-serif"><b>If something with <span class="gmail_default">the "red quality" is illuminated with blue light it will subjectively look black, does it still have the red quality or does it now have the black quality? </span></b></font></div><div><font size="4" face="tahoma, sans-serif"><b><br></b></font></div><div><font size="4" face="tahoma, sans-serif"><b><span class="gmail_default">John K Clark</span> </b></font></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
-- <br>
Ben<br>
<br>
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