Yesterday, mainstream media outlets were trumpeting some good news about President Obama’s embattled signature health-care legislation. More than 1.1 million people enrolled in ObamaCare in January. That was a marked increase over previous months when a dysfunctional website and widespread skepticism about the law kept enrollment numbers down. While the million new ObamaCare customers were not enough by themselves to offset the dramatic shortfall in the enrollment figures that calls into question the ability of the scheme to pay for itself, the White House and Democrats were encouraged by the fact that a large number of this total were made up of those aged 18-34, who are presumably healthy.

Until now most of those buying ObamaCare were either sick, elderly, or had pre-existing conditions that made it hard for them to purchase insurance. Without a lot more of these young “invincibles,” the plan will simply sink under the weight of an avalanche of red ink. The January figures were enough to pump some badly need confidence about ObamaCare into the political atmosphere, especially after another discouraging administration decision earlier this week to postpone the employer mandate until 2015.

But just one day after that news reassured Democrats that ObamaCare would survive despite all of its problems, today we learn about a new aspect of the enrollment figures that undermines that optimistic story line. As the New York Times reports, of the millions who had purchased ObamaCare prior to last month a staggering 20 percent did not pay their premiums. Though these people are still being counted among the total of those who are enrolled, they are, in fact, not covered and won’t be until the bill is paid, assuming that ever happens. That means the figures the administration has been proclaiming as good news are entirely fictional. Whatever the reason for the failure to pay, be it inability or a lack of intention ever to do so, this massive shortfall makes it clear that the ObamaCare enrollment numbers are Potemkin figures that say nothing about the actual total of those covered by a plan that is already desperately short of the people needed for it to function.

The news about the nonpayment of premiums is startling:

Paying the first month’s premium is the final step in completing an enrollment. Under federal rules, people must pay the initial premium to have coverage take effect. In view of the chaotic debut of the federal marketplace and many state exchanges, the White House urged insurers to give people more time, and many agreed to do so. But, insurers said, some people missed even the extended deadlines.

Lindy Wagner, a spokeswoman for Blue Shield of California said that 80 percent of the people who signed up for its plans had paid by the company’s due date, Jan. 15. Blue Shield has about 30 percent of the exchange market in the state.

Matthew N. Wiggin, a spokesman for Aetna, said that about 70 percent of people who signed up for its health plans paid their premiums. For Aetna policies taking effect on Jan. 1, the deadline for payment was Jan. 14, and for products sold by Coventry Health Care, which is now part of Aetna, the deadline was Jan. 17.

Mark T. Bertolini, the chief executive of Aetna, said last week that the company had 135,000 “paid members,” out of 200,000 who began to enroll through the exchanges.

As we noted earlier this month, many of the state exchanges are having problems relating to dysfunctional websites or bad management. The result is chaos around the nation that undermines the happy talk emanating from the White House about the million new ObamaCare customers last month.

The question about nonpayment is not a technicality. Many of those purchasing the insurance may be first-time buyers and not understand that they must pay their bill before coverage starts rather than long after the fact, as they can with a credit card transaction. Or it may be that some enrolled with no intention of paying or thinking that the hype about the glories of ObamaCare they’ve heard in the mainstream media and from the president absolved them of the obligation to pay for it. But either way, the large number of non-payments renders the enrollment figures broadcast this week utterly meaningless.

We won’t know for months how many people are actually taking part in the problem, or whether they amount to anything close the figure needed for it to be fiscally solvent. Unless more young and healthy consumers buy into the plan, the massive wealth transfer envisioned by the law simply won’t take place. If so, the government will be forced to step in to save the health-care scheme with a bailout that will amount to a vast increase in the already staggering figures needed to pay for entitlements. Combined with the fact that the administration is seeking to postpone the most painful aspects of the law until after the midterm elections this fall, the long-term outlook for the law remains bleak. But whether it recovers from these blows or not, today’s news should inspire even more skepticism about ObamaCare in a public that never supported it in the first place.