Opinions are like assholes: everyone's got one.

This is what almost everyone does about almost every topic:
* Take in some information. By necessity, it will be a limited amount of information. Contemplate it. Consider it. Let their cognitive biases loose upon it. Arrive at a conclusion (ie. conclusion means to STOP. So, now, Conclude the Thinking = Stop Thinking. Stop considering additional information.).
* ASSUME that the conclusion that they have reached is the SAME conclusion that they would have reached, if they'd had additional information.
* Frame and display on the wall of their mind's eye's hall of memories, "The Conclusion" for future reference.
* Discard memory/stored copies of the input information.
* Cease allowing input of additional information for further consideration.
* In all future situations related to that topic, read and speak the words written in the Framed Thing On The Wall of Their Mind, verbatim. Loudly.
* Defend the Framed Words with barbed wire fence, crocodile-filled moat, and machine-gun towers.
* Never, ever, EVER take the framed thing down off the wall and contemplate if it might perhaps need revision, updating, or to be burned at midnight in a ritual of mental cleansing.