Flames are spreading through a Cincinnati hotel. The staff know it, the fire department is coming, and the people in the packed cabaret bar have been told to evacuate… and yet they hesitate to leave. Why don’t we react to some warnings until it’s too late?

Read more about Tim's work at http://timharford.com/

Tim's latest books 'Fifty Inventions That Shaped The Modern Economy' and 'The Next Fifty Things That Made The Modern Economy' are available now.