The Arithmetic of Regret

Kieran Setiya — Midlife: A Philosophical Guide (2017, Princeton University Press)

Platform: Nous Sapient • Micro Reading Book Club

Author: Shashank Heda, MD

Location: Dallas, Texas

Organization: Raanan Group • Nous Sapient

Sometime around forty-three — maybe forty-four, the dates blur because the feeling didn’t arrive as an event — I noticed a peculiar flatness settling over things I had built with genuine care. Not depression. Not boredom, exactly. More like standing in the middle of a house you designed yourself and realizing the architecture is sound, the rooms are full, and somehow the air has gone stale. I mentioned this to a cardiologist colleague at a conference in Chicago, freshly named department chief, and he looked at me with an expression I can only describe as relieved recognition. “You too?” That was enough.

Kieran Setiya, an MIT philosopher who writes with analytic precision and confessional honesty, would recognize that exchange immediately. His Midlife is a small book — 186 pages — diagnosing a condition millions feel but few can name with structural clarity.

This is not self-help dressed in philosophical clothing. Setiya submits his arguments to a specific evidential standard — Aristotelian action theory, utilitarian critique via Mill and Schopenhauer, contemporary well-being research on the U-curve of life satisfaction. The question is whether his machinery actually explains why accomplished, fortunate people feel hollowed out at the midpoint of their lives, and whether his prescription survives contact with the lives most of us lead.

Setiya’s core claim: the midlife crisis is not a failure of achievement or character but a structural consequence of how we relate to our own activities — and the remedy lies in shifting from projects that self-destruct upon completion to processes realized in the present moment of their doing.

The load-bearing distinction — the one justifying the entire enterprise — is between telic and atelic activities. The insight traces the difference between kinēsis (movement toward completion) and energeia (activity realized in its own doing). Telic activities aim at terminal states — writing a book, earning a promotion, building a practice. Each one, upon achievement, extinguishes itself as a source of meaning. The project that gave your Tuesday mornings purpose for three years is now a line on a CV. Done. Next.

Setiya borrows from Schopenhauer’s darker machinery here. Pursuit of telic ends places fulfillment perpetually in the future — you’re still striving — and upon arrival, consigns it instantly to the past. The present is always empty. Worse, the structure is autosubversive: the point of engaging with a meaningful project is to finish it, destroying the very thing giving your life meaning. If you have spent four decades acquiring a taste for achievement — as Setiya confesses, as I suspect many reading this have — you eventually find a void. Not because you failed. Because you succeeded.

Most accounts reach for narrative explanations — wrong career, wrong spouse, insufficient risk. Setiya’s diagnosis is structural: the problem is not what you chose but the category of choosing itself. Atelic activities offer the counterweight. Walking — not to arrive, but to walk. Being with your children — not to accomplish a parenting milestone, but to inhabit the relationship. These cannot be completed. Their value is available now, not deferred to some future achievement that will only annihilate them. The prescription is not to abandon projects but to shift your evaluative orientation: pursue the end in order to be at work, not the reverse.

On regret, Setiya makes a second counterintuitive move. He argues we should not wish away past mistakes — because to do so is to wish away the entire causal chain producing the life you are living, including the people in it. The child born of a marriage you sometimes question would not exist had you chosen differently. You cannot coherently want the reversal without wanting to erase what you now love most. On mortality, he is bracingly honest: philosophy offers no satisfying consolation. The chapter ends not with resolution but with the suggestion that mindfulness may help us live with what cannot be solved. Not a cure. A practice.

Where does the framework leak? First, privilege. The telic/atelic reorientation assumes basic needs are met and the question is how to experience your activities differently. For the physician working three jobs to discharge debt, or the immigrant entrepreneur whose telic orientation is survival arithmetic, the prescription lands differently — it may land as irrelevant. Second, the atelic turn risks quietism. If I reframe activism as process (“I protest to be protesting”), I grow comfortable with inconsequence. Some projects need completion. A surgeon does not operate to be operating. Third — and this gap is the most conspicuous — Setiya undertheorizes relational regret. His regrets are paths not taken. The regrets people at forty-five are more often interpersonal: the parent you failed to understand before they died, the friend you abandoned during your ambitious years. That species of regret requires something closer to expiation than logical-necessity arguments about causal chains.

There is a resonance here with a much older architecture. In Sanatan Dharma, the four ashramas map a structural transition at precisely the life stage Setiya diagnoses. Vanaprastha is not retirement — it is deliberate reorientation from acquisition toward reflection and detachment from outcomes. What is striking is that this framework treats the midlife shift not as a crisis but as a scheduled transition built into the design of a well-lived life. Setiya reinvents, with admirable rigor, a wheel turning for millennia — but reinvents it without the cultural scaffolding that once made the transition legible.

Try this. Pick one activity you experienced today as purely instrumental — a meeting endured for its outcome, a commute tolerated for its destination. Now ask: is there an atelic version of the same activity? Not a different activity. The same one, experienced differently. Can the meeting become a practice of attention? Can the commute become the walk itself? If the reframing feels forced, that is diagnostic information. It tells you how deeply the telic orientation has colonized your relationship with your own hours.

And here is a question Setiya does not ask, one I cannot put down: if the crisis is structural — built into goal-pursuit itself — then why do some people never experience it? What inoculates them? Is it temperament, culture, a different relationship with time? Or did they simply never notice the air going stale — and if so, are they better off, or worse?

Author: Shashank Heda, MD — Dallas, Texas

Organization: Raanan Group • Nous Sapient