President Barack Obama paid late-night host Stephen Colbert a visit on Monday as the guest on the final episode of The Colbert Report. Before the two sat down to discuss the finer points of immigration, voting, and the economy, Obama stepped onto the studio floor to commandeer Colbert’s serial section, “The Word,” which Obama renamed the more official-sounding “The Decree.”

In his decree, the president reflected on the ups and downs of Healthcare.gov and the prevailing success of seven million people signing up since its 2013 rollout, and roughly a million more in the last few weeks. Still not at optimum enrollment rates, however, Obama raised the question of how to get more people signing up for health insurance after they turn 26. One problem was awareness, he explained.

“Young people don’t watch real news shows like this one,” he said, seated behind Colbert’s news desk. Or maybe the issue is a feeling of invincibility. Even if he did get his message across, Obama said, “young people don’t think they need any insurance. After all, they’re young. They don’t realize that eventually everyone grows older — sometimes at a faster rate than others.” At which point an exuberant-looking headshot flashed beside the temporary host, who has clearly been aged by his four years in office.

Open enrollment for Obamacare began on Nov. 15, 2014 and ends Feb. 15, 2015, during which time people can enroll for the first time, switch their current plan, and get subsidies.