People just seem to naturally have it.
I don’t believe there’s a single person on this planet who has never been affected by confirmation bias, the tendency to search for affirmative over interrogative information in regards to their own ideas and beliefs. And yeah, of course it’s a problem in debating, but doesn’t it actually lay deeper than a modern psychological layer? Is it a natural reflex?
I imagine self-confidence being a decent representation of this. If you’re really confident, you’d brush aside any notion that you’re not the best you can be as not even possible. On the other side of the spectrum, if you don’t feel at all secure with yourself, you’re unlikely to evaluate yourself fairly. You’re just latching on to every thought of a possibility that conforms to your weak self-image. It’s your confirmation bias working where it really shouldn’t.
But applying it to yourself isn’t really sensical, it just results in endless loops into a specific direction. So is this pure instinct? Why would it be, wouldn’t evolution reward those who can adapt?
…Or is this just me?