Ártur Rioni on Instagram: "1. In 2018, Harvard researchers ran an experiment that accidentally explained why society feels more divided despite measurable progress. Participants were shown 1,000 dots from blue to purple and asked to identify the «blue» ones. As researchers reduced the number of blue dots, something unexpected happened: people started calling purple dots «blue.» Their definition expanded to maintain a consistent threat level, even when the actual threat dropped by 80%. 2. They re