The title sounds a contradiction. However, as humans, we have an enormous amount of data flowing through our sensory system – most of which is filtered by our brain. For example, as you read this blog – your brain will throw away 99% of the data it receives through your nervous system and only keep information that supports your current thoughts: one could look at this as your pre-existing beliefs. The filtering out of information is unconsciously performed by everyone as part of our survival conditioning. Imagine the nuggets of information that our brain filters out as they don’t fit in with its current thoughts. There are so many new insights and discoveries we miss by staying stagnant in our existing beliefs.
