3 key sociological variables capacity to bring us together and tear us apart = double dynamics. Is a large group of people who occupy a similar socio-economic position relative to wider society. Class is a relative concept compare and contrast. Some dominant groups will have control of resources -- income, property, wealth, advantageous social networks. Challenging to discuss bc some people are unbothered talking about inequality, others get sensitive to this issue. The concept of life chances, introduced by max weber, is one useful way to understand the concept of class. Why class has consequence on people"s lives. Life chances: opportunities that you have for achieving socio-economic prosperity. Say there"s a person from a poor background low-income parents what are the chances that you"ll become a brain surgeon. That person has less of chance ending up wealthy compared to a chaebol. You should just start off wealthy straight out the womb.