We can't know, any more than we can know that the red of a strawberry or the sound of a middle C on a flute look/sound the same to someone else, or come to that the touch of a red hot poker feels the same. We can only assume it - and infer that it is a reasonable assumption from the similarity of brain impulses in similar areas invoked by these things.
― Martin Skidmore (Martin Skidmore), Wednesday, 23 June 2004 20:40 (twenty-one years ago)