Significant Figures[1] is a series from The Conversation in which scholars explain an important number in the news.
The Conversation, CC BY-ND[2] When the Affordable Care Act[3], also known as the ACA or Obamacare, was enacted in 2010, lawmakers hoped it would help reduce the number of uninsured Americans. That year, an estimated 48.2 million people – about 18% of the U.S. population under age 65 – did not have