Human beings aren't naturally capable of unbiased clear thinking. This is why we use logic, math, spreadsheets, and computers. We just aren't good at critical thinking based on the neuroscience and the less time there is to make a decision the worse we get.
My whole point is that the human brain itself is not going to suddenly become capable of perfect logic, unbiased, capable of true wisdom. It just doesn't happen like that. Even if we talk about science, we don't know something is a scientific fact based on the consensus of a lot of really smart or educated people. We know something is a scientific fact if in the theory there are predictions and those predictions are observed in data collected.
So if we look at the standard model for instance we know the standard model is correct because it predicted the result of an experiment (the discovery of the Higgs particle).