Ross Douthat had a great blog item the other day, saying that on the question of fertility technology, the slippery slope critics warned about has become a reality. Excerpt: James Watson wasn’t ...

the slippery slope isn’t a logical fallacy, but a way of life. In our gloomy predictions, we regularly understate how far society will begin kicking us down the slope once we start sliding.

When considering your argument or the arguments of others, writers and readers need to be aware of logical fallacies. Logical fallacies are found in many places—ads, politics, movies. Logical ...