Because much of our information intake is less about seeking truth and more about being reassured that we are on the right path. One reason for that is confirmation bias. Confirmation bias is our natural tendency to favor information that supports what we already believe. In that sense, it is normal. We all do it. The problem begins when we ignore, downplay, or dismiss new information simply because it does not fit what we already think. That is where bias starts leading us away from truth and deeper into our own worldview.
While it is difficult to eliminate confirmation bias completely, it is possible to manage it. The key is to pay close attention to new evidence, especially when it challenges old, settled ideas. That is hard to do, because challenging evidence often feels uncomfortable. But discomfort is often where growth begins.
Take astrology. Believers in horoscopes often notice the predictions that seem accurate and overlook the many misses. That is confirmation bias at work. One way to challenge it is through a blind test, such as asking someone to pick out their horoscope without knowing which sign it belongs to. A simple exercise like that can shake even strong confidence.
Take meditation as another example. Many people speak of it as though it is the key to happiness, and there is real evidence that it can help some people. But confirmation bias can still creep in when we cling only to glowing testimonials and ignore studies that show mixed or limited results. The better approach is to seek out a wider range of evidence and resist turning a helpful practice into a universal answer.
Now consider climate change. Someone convinced it is a hoax may read only articles that reinforce that belief while dismissing the much larger body of scientific evidence pointing the other way. That is how confirmation bias works across serious public issues too. To push back against it, we have to engage with opposing evidence honestly, question our assumptions, and stay open to changing our minds.
