The share of 18 to 34 year olds signing up on nine of the state exchanges ranges from about 10 percent in Minnesota to 37 percent in Massachusetts, with most clustered around 20 percent, according to the New York Times. Obamacare can’t work with those kinds of results. So what can the president do to drum up interest among the young and the healthy before it’s too late? Here are a few ideas off the top of my head.

First, announce and advertise that everyone between the ages of 18 and 34 who enrolls on the health-care exchanges by the end of the year is automatically entered in a lottery. Winners will receive everything from a free iPhone or iPad to a full-year of health-care underwritten by Uncle Sam. Refer a friend and get a discount. Buy one (year), get one free. In states that have legalized marijuana for recreational use — Colorado and Washington — by all means, throw in a bag of cannabis.

It isn’t fair, you say? Who said life is fair? Obamacare is based on the idea of young, healthy people, who don’t use a lot of health-care services, subsidizing the sick and elderly. Their generation is on the hook for the debt incurred to provide for the baby boomers in retirement. So forget fair…

Third, change the psychology so that it’s cool to have health care. Create a rap video with a half-naked heart throb gyrating to music as he sings, “Bye-bye ER, I’m gonna miss you.” Or the White House could ask its friends in Hollywood to develop a reality TV show.