No soul?
D.A.R.Y.L., as lovable as he was, having only a computer for a brain, should not have had either a soul, or a true consciousness.
Since atheists seem to be capable of loving people, such as their own kids, the perceived no-soul condition apparently does not exclude someone from being lovable.
However, would people be severely distracted by the thought that he was not truly conscious--that there was nothing really there, inside his head, looking back at them--just an elaborate, polite, response machine.
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The story is king.