Question

the story of how fat bodies change from signifying high status because it reflected wealth to low status because it signified lack of self - restraint during a time of conspicuous consumption furthers one of chapter 7s central arguments: that sociological research can predict which human features will become identities and which subcategories will be ranked higher or lower than others, that social hierarchies are neither random nor fixed but rather outcomes of social processes, that most people care about their health and therefore eventually ignore social status and listen to science, that status ranking is random and fixed and reflect biological propensities.

Explanation:

The change in the status - signifying nature of fat bodies from high to low status shows that social hierarchies are results of social processes. It's not random or fixed as it changes with social contexts like the era of conspicuous consumption.

Answer:

that social hierarchies are neither random nor fixed but rather outcomes of social processes.