The “SLED Test” is a simple argument against abortion.
The pro-life view is that the unborn are human beings just like you and me. That’s why it’s wrong to kill them. Although many abortion-choice advocates agree the unborn are human, they deny they are valuable human beings. They think this distinction justifies killing the unborn.
Abortion-choice advocates typically cite one or more characteristics they believe make a human being a person. Each of these characteristics fall under one of four categories. You can remember these categories with the acronym SLED: Size, Level of Development, Environment, and Degree of Dependency.
In this 4-part video series, Stephen Cardy considers how each category is irrelevant to human value: