Human thinking is part of reality. But we are too small and our understanding too limited for our thinking to be soundly based. Our most trusted "knowledge" is often merely propaganda we refuse to abandon. We cannot escape the consequences of our own decisions in the long run.
Your thinking affects the thinking of other people. Our combined thinking can sometimes expose the truth so many of us are trying to avoid. Knowledge once we recognise it, forces us to action.
But people prefer happy stories. Our hopes and dreams encourage us to "believe" that some secret formula is at work that can save us. If we follow this preferred decision process as we often do, our group thinking diverges further and further from reality.
"Rock-a-bye baby in the tree top" is a rhyme that tells this story.
"When the bow breaks the cradle will fall,
down will come baby cradle and all."
Our understanding is inherently flawed. When we believe so passionately that we are "right" we so often stand directly in the way of the best decision. It's only possible to search for the truth if you first admit that you've lost it. Each of us accepting that "I am most likely wrong" is a sound basis for progress. Then we can begin to look for better understanding of the problem and for less biased information. The political process in every country I know about is broken and the politicians prefer it that way because it gives them more power.