Dark Arts 101: Using presuppositions

65 PhilGoetz 27 December 2010 05:16PM

Sun Tzu said, "The supreme art of war is to subdue the enemy without fighting."  This is also true in rhetoric.  The best way to get a belief accepted is to fool people into thinking that they have already accepted it.

(Note, first-year students, that I did not say, "The best way to convince people of a belief".  Do not try to convince people!  It will not work; and it may start them thinking.)

An excellent way of doing this is to embed your desired conclusion as a presupposition to an enticing argument.  If you are debating abortion, and you wish people to believe that human and non-human life are qualitatively different, begin by saying, "We all agree that killing humans is immoral.  So when does human life begin?"  People will be so eager to jump into the debate about whether a life becomes "human" at conception, the second trimester, or at birth (I myself favor "on moving out of the house"), they won't notice that they agreed to the embedded presupposition that the problem should be phrased as a binary category membership problem, rather than as one of tradeoffs or utility calculations.

Consider the recent furor over whether WikiLeaks leader Julian Assange is a journalist, or can be prosecuted for espionage.  I don't know who initially asked this question.  The earliest posing of the question that I can find that relates it to the First Amendment is this piece from Fox News on Dec. 8; but Marc Thiessen's column in the Washington Post of Aug. 3 has similar implications.  Note that this question presupposes that First Amendment protection applies only to journalists!  There is no legal precedent for this that I'm aware of; yet if people spend enough time debating whether Julian Assange is a journalist, they will have unknowingly convinced themselves that ordinary citizens have no First Amendment rights.  (We can only hope that this was an artful stroke made from the shadows by some great master of the Dark Arts, and not a mere snowballing of an ignorant question.)

The Dark Arts - Preamble

44 Aurini 11 October 2010 02:01PM

I’d like to tell you all a story.

Once upon a time I was working for a charity – a major charity – going door-to-door to raise money while pretending it wasn’t sales.

This story happened on my last day working there.  I didn’t know that at the time; I wouldn’t find out until the following morning when my boss called me up to fire me, but I knew it was coming.  For weeks I’d been fed up with the job, milking it for the last few dollars I could pull out, hating every minute of it but needing the money.  The Sudden Career Readjustment would come as a relief.

So on that day, my last day, I was moving slowly.  I knocked on one particular door and there was no response.  I had little desire to walk to the next one, however, and there was an interesting spider who’d built its web below the doorbell.  I tapped its belly with the tip of my pen, and it reacted with aggression – trying to envenom and ensnare the tip of my ballpoint.  I must have been playing with it for a good minute or so when the door suddenly opened.

A distraught woman stood before me.  After a brief period of Relating I launched into my pitch.

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