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Typos are my bain, but my above post is ridiculous. This will be better.
Whether mirror neurons are a metaphor for empathy, create it or merely reflect it, the one thing that emerges from this article that in humanity, empathy has reached an evolutionary zenith. Whether it is a metaphor or a physical reality, this quality which lies at the heart of what a human is, has another name: love.
You might be interested in a comment on mourning posted to my blog: http://johnklotz.blogspot.com
And please note one crucial aspect of empathy illustrated by the failure of the writer to act on his feelings for woman in the subway. He chose not to act. Acting on empathy -love -more than any other human act, is act of FREE WILL. Excuse the caps, but given the drive of some scientists to reduce every human act to some kind of determinism or other, the fact is we do have a the freedom of choice.