"Half of two is less than one"

This headline intrigued me. Go read the accompanying piece. Right to the end so you can see who wrote it:

Half of two is less than one when it comes to families

There is a devastating demoralising disease sweeping the world at a drastic rate, and children in our generation have a 42% chance of being infected with it.
This disease will affect almost every aspect of a child's life.
There is no cure, no treatment available, but there is a preventive.
The question is, will you try to stop it?
This disease will give a child a 48% higher possibility of smoking.
One in four children that get the disease will drop out of high school.
Out of the three in four kids who stay in school, 40% of them will not graduate by the age of 20.