The Humans

The Humans Review

The Humans begins with an alien announcement: an extraterrestrial being has taken over the body of Andrew Martin, a Cambridge mathematics professor, because Martin has just solved the Riemann hypothesis and the aliens who sent the body-snatcher consider this information too dangerous for humanity to possess. The alien’s mission is to destroy all evidence of the proof and eliminate anyone who has learned of it, then return home.

What follows is not the thriller this premise might suggest but something far warmer and more disarming: the alien’s account of learning to be human. It catalogues its observations — the confusing nature of human clothes, the incomprehensible appeal of peanut butter sandwiches, the extraordinary poems of Emily Dickinson, the unconditional attachment of a dog called Newton — with the fresh eyes of someone for whom none of this is ordinary. Matt Haig uses the alienation device to defamiliarize the texture of ordinary human life until it looks, as it actually is, miraculous.

Haig wrote The Humans while recovering from the panic disorder and depression he later described in Reasons to Stay Alive, and the novel’s emotional architecture reflects that experience: it is a book about someone discovering, against their original intentions, that there are reasons not to die. It makes this argument not through therapy or self-help but through story, through the specific accumulated weight of small pleasures and genuine connections. Some readers will find the sentimentality too much; others will find it exactly sufficient. It is one of those novels that people give to friends going through difficult times, and it is given for good reason.

What Distinguishes This Book

Among the qualities that set The Humans apart: The alien’s list of observations about humanity is both genuinely funny and genuinely moving — a difficult combination to sustain; The emotional payoff is earned through the whole novel’s architecture, not manufactured at the end; and The novel argues for life without condescension or false cheer — it acknowledges that humans are genuinely difficult creatures. These strengths are evident from the first pages and sustain across the whole work.

Themes

The thematic concerns of The Humans give it weight beyond its surface narrative. Alienation — from one’s own life, one’s family, one’s work — is the default human condition, which is why it takes an alien to see through it. The small pleasures of embodied life (food, music, dogs, love) are not consolations for its difficulty but its actual content. Mathematical genius and human connection are not opposed — the novel’s central loss is that the protagonist had to choose. These ideas emerge from the texture of the work rather than explicit statement, which is the mark of ambitious fiction done well.

The Writing

Matt Haig’s prose in The Humans is the vehicle through which the book’s ideas travel. The style is calibrated to the subject — neither more ornate nor more stripped-down than the material requires. This kind of precision is less common than it appears, and it is one of the reasons the book repays re-reading: there is more in each page than a single pass recovers.

Limitations

The science fiction premise is thin — readers expecting rigorous SF logic will be disappointed. The sentimentality is deliberate but not for every taste. These are worth knowing before starting, though they are unlikely to diminish the experience for the readers the book is written for.

The Alien as Moral Instrument

Science fiction has long used the outsider’s eye to make the familiar strange, and The Humans belongs squarely to that tradition, but Haig’s interest is less in satire than in rehabilitation. The unnamed Vonnadorian narrator arrives convinced that humans are violent, irrational, and not worth saving, and the comedy of the early chapters — its bafflement at clothing, at money, at the indignities of the body — is genuinely funny precisely because it is also a slowly building case for the defence. Each absurdity the alien catalogues turns out, on inspection, to be inseparable from something it comes to value. Newton the dog, peanut butter, the poems of Emily Dickinson, the small unearned kindnesses of a wife and son the alien did not ask for: these accumulate not as a list of consolations but as the actual substance of a life worth choosing. The premise is, by the standards of hard science fiction, gossamer-thin, and Haig makes no real effort to shore it up; the machinery exists only to deliver the perspective.

Connection to Haig’s Own Recovery

The novel is best read alongside Reasons to Stay Alive, the memoir Haig drew from the same period of his life. Both books are organised around the discovery that a person convinced of the worthlessness of existence can be argued back toward life — not by abstract reasoning but by the specific, embodied texture of ordinary days. In the memoir the protagonist is Haig himself; in the novel the work of estrangement is outsourced to an alien, which lets Haig make the case for living without the self-consciousness that direct confession would carry. The famous list of advice the narrator eventually leaves for the human he has become — a set of plainspoken instructions for being alive — is the point at which the science fiction frame falls away entirely and the book reveals itself as what it always was: a letter from someone who nearly left, written to anyone tempted to do the same.

Final Verdict

Our rating: 4.0/5 — A deeply kind book dressed up as science fiction comedy — Haig uses the alien perspective to defamiliarize ordinary human life until it looks miraculous, and lands emotional punches that sneaked past every defense.