Some points of view lead to unusual–even irrational–results when played out consistently. This tactic helps you test the accuracy of someone’s worldview “map” by showing that his particular position leads to absurdity. this is also known as reductio ad absurdum, or reducing an argument to its absurd conclusion or consequence.
First, adopt the other person’s viewpoint for the sake of argument. Next, give the idea a test drive. Try to determine the implications that his reasoning has for other issues. Where will you end up if you follow his rationale faithfully to its logical end? Then, using well-placed questions (Columbo), help him see the error.
Consider these examples:
Some Christians oppose capital punishment because Jesus would forgive. On this reasoning, though, any punishment for criminals would be wrong because one could always argue, “Jesus would forgive.” This seems absurd, especially when Scripture states that government is meant to punish evildoers, not forgive them (1 Pet. 2:14).
The Pharisees claimed Jesus cast out demons by the power of Satan. Jesus “took the roof off” by showing where such reasoning led: If Satan is the source of Jesus’ power in exorcism, then Satan is casting out Satan, destroying his own kingdom. This is absurd.
Some people believe abortion is wrong for them because they believe it kills a baby, but think it’s wrong to “impose” this personal belief on others (the politician’s favorite “modified pro-choice” vide). Counter by taking the roof off. “So, you really believe that abortion kills an innocent baby, but you also think mothers should be legally allowed to do this to their own children. Right?” As you can see, this view is morally absurd.
Taking the Roof Off
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