Feeling is a relationship between a particular observer and a particular observed.
So the question of “whether the color red I see is the same as the color red you see” is logically meaningless.
— Me@2015-04-06 1:13 PM
If observer B can get the memory of observer A, it is logically possible to feel another mind’s feelings (to a certain extend).
In that situation, the question of “whether B’s feeling of seeing the color red is the same as A’s” is meaningful.
— Me@2015-04-07 03:58:46 PM
2015.04.09 Thursday (c) All rights reserved by ACHK