Fiftyfifty is a gallery based in Düsseldorf, Germany, that is actively trying to help out those less fortunate and homeless.
To simulate what it would be like to live on the streets, they got cinemas in Germany to turn the airconditioning to 8°C / 46°F. Then they showed videos of homeless people on the street commenting on the cold cinema experience. It turned out that for them 8°C / 46°F was cozy.
This reality check for the people pushed them to scan the QR codes on the blankets and donate some money to keep the homeless people warm.