The workings of our brain have got us this far on planet earth. Hooray! But our survival has been at the expense of producing a system fraught with mistakes. Here we find out what those mistakes are, why they occur and how we might work to prevent them. It is a battle against the messages from advertising, propaganda, social media and politicians that are designed to work through our biases and corruption of our memories. A journey through the workings of our brain. By Ray Harper, Biochemist