In “The tyranny of the discontinuous mind”, Dawkins wonders why we cling to absolutes of yes and no, black and white, rich and poor; pretending not to see the millions of grey areas in life. These absolutes, he argues, distort reality:
Dawkins goes on to consider a variety of these absolutes — where a blindness to intermediates may constrict or condemn us — beginning with the arguments proposed by anti-abortionists:
There are those who cannot distinguish a 16-cell embryo from a baby. They call abortion murder and feel righteously justified in committing real murder against a doctor – a thinking, feeling, sentient adult, with a loving family to mourn him . . .
It is amusing to tease such absolutists by confronting them with a pair of identical twins (they split after fertilisation, of course) and asking which twin got the soul, which twin is the non-person, the zombie. A puerile taunt? Maybe. But it hits home because the belief that it destroys is puerile, and ignorant.
Posted by New Statesman – 19 December 2011 17:47

Well said Richard,
a good comment made on a very tricky and emotive subject.
Graham (Supernova)
Graham,
I look forward to reading/listening to the illogical contortions of the literal and limited mindset the anti-choice absolutists will certainly put themselves through in their futile attempt to answer “which twin got the soul?”
In Reason,
Madison