The document discusses how societal values have shifted over time in the UK from predominantly Settler values to more Prospector and Pioneer values. It attributes this shift to improving living standards and security after World War 2 that allowed more people to meet their basic needs for safety and belonging, enabling them to pursue higher-level needs like esteem and self-actualization. As more needs were met, more people transitioned along the Settler-Prospector-Pioneer spectrum. However, the Great Recession caused values to shift back slightly as safety needs became more prominent again. The document used historical data on factors like life expectancy, child mortality, and home ownership to evidence the meeting of basic needs over the 20th century