Matt Yglesias delivers a sobering correction to the modern obsession with meritocracy: even a perfectly designed, rational system can produce deeply unfair outcomes simply because of the randomness of timing and the rigidity of thresholds. While most debates focus on whether the test is biased, Yglesias argues that the real injustice lies in how a one-point difference on a standardized exam, compounded by the arbitrary needs of an institution like the Air Force, can permanently alter a person's earning trajectory. This is not a story about corruption or malice, but about the quiet, structural cruelty of path dependency that affects everyone from enlisted airmen to tech entrepreneurs.
The Mechanics of Arbitrary Assignment
Yglesias begins by dismantling the assumption that meritocratic sorting is synonymous with fairness. He points to the U.S. Air Force's use of the Armed Services Vocational Aptitude Battery as a case study in how rigid systems handle human capital. "The Air Force only has so many smart recruits to go around so they need to prioritize," he writes, noting that when there is a surplus of high-scoring recruits, they are often funneled into lower-status jobs simply because the military needs to fill specific quotas for that year. This creates a scenario where a recruit's career path is dictated less by their actual ability and more by the fluctuating labor market conditions of the year they enlisted.
The data from researchers Julie Berry Cullen, Gordon B. Dahl, and Richard De Thorpe reveals the human cost of this mismatch. Yglesias highlights that overqualified applicants are "unusually likely to quit" and manifest behavioral issues, yet they are paradoxically more likely to be promoted because they possess higher underlying intelligence. However, the long-term financial damage is severe. "The researchers estimate that every 10-percentage-point increase in ability surplus leads to a 10 percent decline in predicted civilian earnings," Yglesias notes. This finding is crucial because it suggests that the years spent in a role beneath one's capability are not just a temporary inconvenience; they represent a permanent loss of human capital that the market does not forgive.
This argument is strengthened by the historical context of the Armed Services Vocational Aptitude Battery, which has been used since the 1950s to sort millions of Americans. The system was designed for efficiency, not equity, and Yglesias rightly points out that "everything about this is perfectly reasonable from the standpoint of the Air Force trying to manage its personnel needs." Yet, this efficiency comes at the cost of individual fairness. A critic might argue that the military's primary mandate is national defense, not career counseling, and that any system attempting to balance mission needs with individual optimization would be paralyzed. Yglesias anticipates this, acknowledging that the military "can't just maximize everyone's job opportunities — they need to assign people to do the things that need to be done."
The fact that whether you get training in a good specialty field is a function not only of tiny, somewhat arbitrary variance in test scores, but also of factors that are entirely outside your control is a bitter pill.
The Illusion of Control and the Role of Luck
Moving beyond the military, Yglesias broadens the scope to discuss the pervasive role of luck in all successful careers. He challenges the popular narrative that wealth and success are solely the result of superior intelligence and grit. "I think about my son, who is 10 and on a swim team," he writes, recounting how a chance assignment to a specific instructor at a local YMCA set his son on a competitive trajectory that his parents never intended. This anecdote serves as a microcosm for the larger argument: small, random events often have outsized effects on life outcomes.
Yglesias applies this same logic to his own career, admitting that his success in the blogosphere was a product of timing as much as talent. "I got into the blog game at exactly the right time," he reflects, noting that a few years earlier his speed would have been irrelevant, and a few years later the market would have been too saturated. He warns against the "survivorship bias" that leads successful people to believe they are immune to chance. "It's fun to think you're just more tough-minded than all the risk-averse herd-followers out there, but you were also luckier than the people whose bets didn't pay off," he asserts. This is a vital corrective to the arrogance often found in elite circles, reminding readers that the line between success and failure is often drawn by factors beyond one's control.
The argument here is particularly effective because it avoids the trap of dismissing hard work. Yglesias is clear that intelligence and effort matter, but he insists they are not the whole story. He draws a parallel to the economic literature on graduating during a recession, citing studies by Lisa Kahn and others that show how entering the workforce during a downturn can permanently depress earnings. Just as a recession forces employers to "reach down" the ability stack, filling high-value roles with less-qualified candidates, the Air Force's fluctuating needs create similar distortions. The result is that "your earnings trajectory is a function of your underlying ability but also of your specific occupational training," a reality that often has nothing to do with the individual's merit.
Designing a Fairer World
In the final section, Yglesias addresses the policy implications of this randomness. He rejects the idea that we can simply eliminate thresholds or make admissions purely probabilistic, noting that "someone who missed out on a good Air Force job assignment despite having a better score than some people who did get the gig would then have his own legitimate complaints." Instead, he argues for a societal structure that acknowledges the capricious nature of these systems. "Basically functional, well-designed systems can be very capricious under the hood," he writes, concluding that we need "progressive taxation, good public services, and a strong safety net to sustain a win-win society."
This is the piece's most profound takeaway: we cannot engineer a perfectly fair meritocracy, so we must build a society that cushions the blows of unfairness. Yglesias suggests that the solution is not to abandon merit-based sorting but to recognize its limitations and compensate for the randomness it introduces. He warns that technological change, while generally positive, creates specific losers based on where they are in life when the disruption hits. "If that happens to you when you're 63, it's no big deal," he observes, "but if it happens when you're 50, you've built up an entire career's worth of job-specific skills that are being devalued at a time when you're still well short of retirement."
Critics might argue that this focus on luck undermines the incentive to work hard or that it promotes a fatalistic worldview. However, Yglesias's point is not to discourage effort but to foster humility and empathy. By understanding that success is partly a matter of chance, society can be more generous to those who fall through the cracks of even the best-designed systems. The goal is not to eliminate the Air Force's need to fill slots or the market's need for efficiency, but to ensure that the collateral damage of those needs does not ruin lives.
Bottom Line
Yglesias's strongest contribution is his ability to separate the concept of merit from the concept of fairness, demonstrating that a system can be logically sound yet morally arbitrary. The piece's vulnerability lies in its reliance on the assumption that society will accept the need for a robust safety net as a direct consequence of this randomness, a political hurdle that remains significant. Ultimately, the reader is left with a clearer understanding that while talent and hard work are essential, they are not the sole architects of destiny, and a just society must account for the role of luck in every life story.