earlier today i spoke with pulitzer prize winning journalist and author isabel will kerson, we talkedontent business explores the history of racial disparity in america. ises isabel will kerson, welcome to the daily social distancing show. >> thanks for having me. >> trevor: you came into so many people's lives and you have stayed in so many people's lives because of your 2010 book which really just blew the lid off of a conversation that so many people wanted to have but didn't know how to havek and that was the warmth of the suno sun, you now have a new book which is you know, everyone is raising, everyone from oprah to every book journalist. and i think for a good reason, entitled cast, and it lacks at how society determines where people should or shouldn't belong but not just through the lens of race, which is really interesting. if we start with that, what is the difference in your opinion between caste and race. >> well, caste is the basically the artificial, arbitrary, grated ranking of human value on a society. and it determines one's standing, respect, benefit of the doubt, a