Invisible Knapsack". In this critique McIntosh made observations about conditions of advantage and dominance in the US. She described white privilege as "an invisible weightless knapsack of assurances, tools, maps, guides, codebooks, passports, visas, clothes, compass, emergency gear, and blank checks", and also discussed the relationships between different social hierarchies in which experiencing oppression in one hierarchy did not negate unearned privilege experienced in another. In later years, the theory of intersectionality also gained prominence, with black feminists like Kimberlé Williams Crenshaw arguing that black women experienced a different type of oppression from male privilege distinct from that experienced by white women because of white privilege. McIntosh's essay is still routinely cited as a key influence by later generations of academics and journalists. In 2003, Ella Bell and Stella Nkomo noted that "most scholars of race relations embrace the use of [the concept] white privilege". The same year, sociologists in the American Mosaic Project at the University of Minnesota reported that in the United States there was a widespread belief that "prejudice and discrimination create a form of white privilege." According to their poll, this view was affirmed by 59% of white respondents, 83% of Blacks, and 84% of Hispanics. 21st-century popular culture The concept of White privilege marked its transition from academia to more mainstream prominence through social media in the early 2010s, especially in 2014, a year in which Black Lives Matter formed into a major movement and the word "hashtag" itself was added to Merriam-Webster. Brandt and Kizer, in their article "From Street to Tweet" (2015), discuss the American public's perception of the concept of privilege in mainstream culture, including white privilege, as being influenced by social media. Hua Hsu, a Vassar College professor of English, opened his The New Yorker review of the 2015 MTV film White People with the remark: "like the robot in a movie slowly discovering that it is, indeed, a robot, it feels as though we are living in the moment when white people, on a generational scale, have become self-aware". Noting that "white people have begun to understand themselves in the explicit terms of identity politics, long the province of those on the margins", Hsu ascribes this change in self-awareness to a generational change, "one of strange byproducts of the Obama era". Hsu writes that discourse on the nature of whiteness "isn't a new discussion, by any means, but it has