One of the most important lessons anyone can learn is distinguishing facts from theories. Facts are true, whereas theories only MAY be true. When facts don't support theories, we need to either eliminate or change the theories.
Unfortunately, people often treat theories as facts. This is why we still have things like affirmative action and gun control today.
Thomas Sowell covers this in depth today in his editorial "Are Facts Obsolete?".
If I may be so bold as to answer Dr. Sowell's question, the answer is "no". However, if humanity doesn't realize this, humanity may become obsolete.