[ExI] quantia game

Anders Sandberg anders at aleph.se
Sat May 4 13:56:08 UTC 2013

On 04/05/2013 05:51, Dan wrote:
> Actually, that does make sense, since, as far as I know, there aren't 
> human examples of people with messed up opponents, such as red-yellow 
> but still having full color (for humans) vision from, say, a 
> neurological condition. Or are there?

Not that I know of. People with cerebral achromatoptsia seem to be 
living in a world that is "drab" or shades of grey, including loss of 
memory of how the colors ever looked  (see Sacs and Wasserman, "The Case 
of the Colorblind Painter", 

Likely this is because the different complements are not physically 
separated much in the brain, so damage affects them all (unlike the P 
and M channel separation, which allows damage to motion and color to be 
separate, http://bob.kentridge.info/PDFs/2003/HeywoodKentridge2003.pdf 
). However, this paper suggests a hue-dependent failure:
There is plenty of weird things going on.

Anders Sandberg,
Future of Humanity Institute
Philosophy Faculty of Oxford University

More information about the extropy-chat mailing list