1. Some practice so offensive that it can scarcely be discussed in public is advocated by a RESPECTED expert in a RESPECTED forum.Step 2. At first, the public is shocked, then outraged.Step 3. But, the VERY FACT that such a thing ould be publicly debated becomes the SUBJECT of the debate.
Step 4. In the process, sheer repetition of the shocking subject under discussion gradually dulling its effect.Step 5. People then are no longer shocked by the subject.Step 6. No longer outraged, people begin to rgue for positions to moderate the extreme; or, they accept the premise, challenging, instead, the means to ACHIEVE it.