We started this episode by emphasising the important distinction between two associated words: 'criticism' vs. 'critique' and how they feature in critical thinking. But then, our special object - a light bulb - reminded us of the dark underbelly of critical thinking: conspiracy theories. Why is it more attractive to believe that thousands of people conspired to fabricate moon landings than that they actually happened, and what does it have to do with critical thinking? Tune in to find out.