I don't know, the moon face seems real enough at the moment of seeing it, too.
Linking this to signal theory and the Fourier transform, one point to consider is that solutions are only true in the infinite limit, so a word, a phrase is never enough to represent reality. A sense of continuity is real enough, but discontinuity, too, although I can't position that in a psychological frame. Or Neurological. But speaking with the y combinator in mind, I don't think words are the fixpoints of thought, but feelings are. Maybe onomatopoetic names are and familiar faces are close enough.
Linking this to signal theory and the Fourier transform, one point to consider is that solutions are only true in the infinite limit, so a word, a phrase is never enough to represent reality. A sense of continuity is real enough, but discontinuity, too, although I can't position that in a psychological frame. Or Neurological. But speaking with the y combinator in mind, I don't think words are the fixpoints of thought, but feelings are. Maybe onomatopoetic names are and familiar faces are close enough.