We think there is a correct way of seeing the world, and we look to eradicate any bias that might vitiate this. But is this an error? Psychologists argue that perceptual biases are at the heart of our understanding the world. Moreover, philosophers going back to Kant have argued that without the imposition of human concepts on sensation, there would be no perception and no consciousness.

Should we reject the desire to overcome bias, and instead see our perception of the world as one particular outcome of an extended process of trial and error? Should we see our bias as central to what makes us unique as an individual? Or is it essential that we seek to uncover our biases to see the world as it really is?

Nobel prize winning psychologist Daniel Kahneman, leading Harvard researcher Ellen Langer, and post post-modern philosopher Hilary Lawson lock horns in our headline debate.