One of the primary indicators of intelligence, at the neurological level, is the ability to distinguish between correlation and causation.
A lot of things happen at the same time that either aren't related or may both be caused by other factors -- think about an increased number of storks nesting on rooftops in Northern Europe and the increased number of births during August. That's correlation. Some things that happen together are, in fact, cause and effect -- think about smoking cigarettes and getting lung cancer. That's causation.
Not everyone can tell correlation and causation apart. That's Glenn Grothman.
To wit: Senate Bill 507
An Act to amend 48.982 (2) (g) 2., 48.982 (2) (g) 4. and 48.982 (2) (gm) of the statutes; relating to: requiring the Child Abuse and Neglect Prevention Board to emphasize nonmarital parenthood as a contributing factor to child abuse and neglect.