Dr. Brahim Zarouali, Assistant Professor in Persuasive Communication at the University of Amsterdam, discusses his research on social media political ads and their effectiveness on different personality types (introverts and extroverts). We break down the findings from two experiments, which try and replicate the psychometric targeting techniques of firms like Cambridge Analytica  by appealing to users’ psychological traits and emotions. We also discuss the de-polarization potential of chatbots, based on a study Dr. Zarouali conducted that presents participants with pro- or anti-attitudinal news on immigration.