Bestselling author Charles Murray visits Heritage next week to discuss his latest work, “Coming Apart: The State of White America, 1960-2010.” The book explores cultural trends, particularly the new upper class and new lower class in the United States. Murray believes these changes — including the increasing divergence between the top and bottom of white America — threaten the very success of the American project.

Murray, a libertarian political scientist and W.H. Brady Scholar at the American Enterprise Institute, will explore these topics at noon Tuesday during his Heritage speech. (Click here to RSVP to attend.)

Included in Murray’s book is a 25-question quiz that has become a popular online test to gauge whether you live in a social and cultural bubble. First published by PBS NewsHour to “help readers determine how thick their own bubble may be,” we’re embedding it below in advance of Murray’s speech at Heritage.

After you’ve taken the quiz, read Murray’s thoughts about what your score might mean.