Gullibility, cynicism, pride, closed mindedness, negligence and wishful thinking. If you can use any of these to describe your reasoning, it's likely you're committing a sin of thought.
The psychologist proposes reason as a solution to all our problems, but telling people they must do something can backfire.
Most of us lack the expertise to evaluate climate science, but there are ways anyone can spot a badly reasoned argument.
Thanks to new deep-learning techniques, AI has the potential to analyse, improve and contribute to the process of human discussion.