President Joe Biden used his farewell speech Wednesday to call out what he referred to as a nascent oligarchy in the United States. Perhaps unsurprisingly, Google Analytics appears to show that a lot of Americans had no idea what he was talking about.

Wealth disparity in the U.S. has grown since 2009, according to Fed data, with a significant increase in the share of the nation’s wealth held by the 238,000 richest people.

Even before Biden’s speech, the rising wealth gap in the U.S. and China raised concerns about whether the world’s two largest economies were becoming oligarchies.