In the first post of this series, I was angry about the book’s linguistics. This time I’m angry about, well, everything else. A bigger job, so let’s start small, in a classroom.
Early in Project Hail Mary, Dr. Ryland Grace (xenobiologist-turned-junior high science teacher, our narrator, our unappreciated genius and designated stickler) asks his class which star is closest to Earth. A student answers Alpha Centauri. Grace corrects her (and not gently): be careful about your assumptions, the real answer is the Sun. This man, the book is saying, insists on precision. Measure twice, cut once. The student would have been right, but she forgot that the Sun is also a star. Alpha Centauri is the second-closest star to the Earth.
Except…
The second-closest star is, in fact, Proxima Centauri — a small red dwarf, gravitationally bound to the Alpha Centauri pair, but quite a bit closer than either of them. Now, you could argue that Alpha Centauri is the system, and that system is the closest one to the Earth, other than the Sun. But… the Earth is part of the Solar System. If you count “Alpha Centauri” as a system, and not a star, then it is the closest system to the Earth, because, by the normal rules of implicature, the Solar System shouldn’t count. If I’m standing in a friend’s house in the country, and I ask him what’s the nearest house nearby, and he says this house, he’s making a joke, and not a great one. So by that interpretation, the student would be correct.
So the scene built to certify Grace’s rigor quietly certifies the opposite: a stickler delivering a wrong correction with total confidence. The narrative nods along, as if he were 100% right.
That scene is the whole book. Over and over, Project Hail Mary performs a rigor it does not actually possess. It’s in the physics, the biology, the institutions, the politics, and finally — if you’re feeling uncharitable, and by the end I was — in the narrator himself. (That last one is part two.)
The Great Man Fantasy
Let me be clear about what I’m not complaining about. I’m not complaining about competence fantasy. I love competence fantasy. Star Trek — one of my favorite things ever made — has been called “competence porn,” and the label fits more often than not, and I don’t care. We all need something to shoot for.
But Star Trek, at its best, isn’t about a lone genius who alone can save the world. (Not even Captain Kirk!) It’s about a bridge crew. It’s about how truth, compassion, and teamwork can raise all of us up together. Its contract with the viewer was never “look how rigorous our science is and how great Captain Picard is at scienceing.” It was “watch this team of good people struggle with a moral problem and find the decent thing to do.” That’s why fake tractor beams and subspace radio don’t matter. The promise is virtue under pressure, and each episode lives or dies by that contract.
Project Hail Mary, though, is the fantasy of the indispensable individual. The one uniquely capable man, alone, who saves everyone. And here is lodestone for the rest of this post:
The worldbuilding fails in the exact direction that flatters the lone genius.
Think of the book as a map. A map is always drawn by someone, from somewhere. A true survey of the world of PHM, with a working scientific community, real global institutions, an actual economy, would crowd the page with other people: rivals, committees, collaborators, the thousand hands required for real achievement. So the book just doesn’t survey those territories. It leaves them blank, or fills them with flimsy invention, and saves its fine, loving detail for the one road its hero personally walks. The institutions go vague for the same reason the far edge of an old chart dissolves into sea-monsters: nobody surveyed it, because the explorer was never there.
The Mad Pseudoscientist
Weir is not doing pseudoscience, exactly, but he’s performing science-seeming actions that aren’t science. We already saw his classroom performance. Here’s some more.
Why the astrophage go to Venus. Grace explains that astrophage migrate all the way to Venus because they need carbon, and carbon is not found on the Sun.
“There’s plenty of hydrogen on the sun. But the other elements just aren’t present.”
“The little blighters need carbon dioxide to breed. Can’t get that from the star (unless you go way into the core, and I don’t know if even Astrophage could survive those temperatures).”
This is stated flatly, as established fact, in the confident teacherly register the book loves. It is also simply false. Carbon is roughly the Sun’s fourth most abundant element. And it certainly exists in the Sun’s photosphere, near the surface.
Now, if Weir wants to force his astrophage to migrate to Venus to breed, he could have just taken a moment to do a bit more research and come up with a more creative solution. For example, carbon in the sun’s photosphere is diffuse, blisteringly hot, and fully ionized, so harvesting it might be wildly impractical compared to scooping concentrated CO₂ from a planet’s atmosphere. That’s a real reason, a good reason, and it’s sitting right there. But he didn’t do that. He reached past the true, interesting idea and grabbed a false, simple one, while sounding authoritative.
Then there’s the ship’s hull. We’re told the Hail Mary travels at a substantial fraction of light speed, which means every stray hydrogen atom in the interstellar medium arrives as a bullet of hard radiation, and any larger speck hits like a bomb. This is real; it’s one of the nightmares of relativistic travel. So the ship must be armored to survive it. And yes, the ship is sheathed in astrophage, which magically absorb any and all radiation, protecting the passengers. Great!
But they don’t protect from interstellar dust grains.
To survive the journey to Tau Ceti at 92% the speed of light, the Hail Mary’s forward hull would need a solid aluminum shield several meters thick: vastly heavier than the thin layer described in the book. (In one scene, he literally breaks off a chunk of the hull with a hammer.) At relativistic speeds, each microscopic interstellar dust grain impacts the ship with the kinetic energy of an artillery shell, instantly vaporizing the metal atom-by-atom in a process called kinetic sputtering. This is cosmic sandblasting. The ship’s thin aluminum skin would be completely eroded away within the first few months of acceleration, exposing the liquid-like astrophage shielding beneath and causing it to bleed out into the vacuum of space, ultimately leaving Dr. Grace to fry under gamma-rays like Dr. Banner.
The book needs the ship tough when toughness is dramatic, and flimsy when flimsiness is convenient, and it never notices the contradiction.
Or the whole panspermia thing. Grace finds that astrophage have mitochondria and leaps to a common origin with Earth life. He turns out to be right, of course, because he has the author on his side, but… No. Mitochondria couldn’t survive the trip he’s imagining. And Earth has abundant evidence of its own pre-cellular life.
Or the Eridians with the radiation Achilles heel, who are established as acutely sensitive to radiation because they evolved in darkness under thick cloud, are in fact actually made of literal rock. Rock is one of the best radiation shields going.
(Oh, and somehow this radiation-blind species detected the Petrova line and navigated to locate astrophage in space, which requires sensing exactly the electromagnetic radiation they supposedly can’t.)
And all these errors arrive confidently, calculated to significant digits, longitude and latitude laid out with apparent precision. The trappings of a careful survey pasted over a coastline he never actually visited.
Now, none of these errors or inconsistencies is fatal alone. No one is perfect. But they create a pattern: a book that wants the credibility of hard science without paying its dues.
Project Fly Fishing
Here’s perhaps the most telling gap.
The entire plot is a single moonshot: humanity, facing extinction as astrophage dim the Sun, builds one ship and sends one crew to Tau Ceti to find out why that one star resists the infection. One shot. No backup. And the book treats this as the only conceivable plan.
But recall how astrophage navigate to Venus to breed: they lock onto Venus by its two CO₂ spectral lines. 4.26 and 18.31 micron wavelengths.
Now recall how the Hail Mary‘s engine works. The spin drive runs on astrophage, and to fuel it, the ship attracts astrophage using low-intensity light tuned to the two CO₂ spectral lines, 4.26 and 18.31 microns. Then it blasts them with high-intensity light at those same frequencies to expel them as thrust. Clever, right?
The engine, in other words, depends on being able to attract and divert astrophage to wherever you want them to go.
So it turns out you don’t need to send a Great Man to another star to stop the astrophage from breeding. And you don’t need to scoop up dangerous and unpredictable astrophage predators to bring them home and infect your star. You just have to divert the astrophage away from their migration path.
You build orbital beacons — vast ones, sure, because you have a mobilized planet and a literally limitless energy source and decades of lead time. Make them shine brighter at the Venus wavelengths than Venus itself. Draw the breeding swarm into collectors, or kill-zones, or simply… away. Cut off breeding and you cap the catastrophe in place.
We humans have done this countless times with migratory species on Earth, intentionally and unintentionally: salmon, bees, whales, butterflies, seabirds, sharks, and on and on. It’s one of our favorite tricks to hack an ecosystem. It wouldn’t be easy and it might not be a permanent cure. But it is an obvious strategy, built entirely from technology the book already demonstrates, and it is exactly the kind of thing a real civilization would pursue in parallel with any moonshot.
There are other things to try, too. Astrophage are quite delicate, actually. You can’t kill them with radiation, but you can kill them with concussive force. Why does the book suggest bombing Antarctica instead of bombing Venus? Shock waves throughout Venus’s atmosphere might literally shake all the astrophage apart. Or perhaps, given the speed and talent of our genetic engineers, and the similarity between astrophage and Earth life, an astrophage-specific virus could be created? The fact that astrophage have mitochondria is brought up multiple times. So shut down the powerhouses of their cells. Or, if you want something on an epic scale, unroll a massive opaque sheet of plastic between Venus and the Sun. If no light reaches Venus, the astrophage won’t be able to see those spectral lines and find it.
Nobody in the book proposes these things. Nobody funds it, tries it, or dismisses it. It is never discussed. A planet with decades, total industrial mobilization, and free energy stakes everything on a single ship.
Why? Because all those ideas require teamwork. And this story requires that one man, alone, be the thing that saves us. The portfolio of strategies a real species would obviously generate never appears, because a portfolio doesn’t have a hero at its center.
Hold that thought. It gets darker in part two.
The World of Straw Men
The same pattern repeats across every human system in the book.
Science, as depicted, exists only as mad science: a single misunderstood genius. Grace is sent in to study the most important and most dangerous substance in human history alone (except for Stratt watching him). No remote sensors, no graduate students, no replication, results apparently shared with no one who might suggest the next experiment. This is not how science works; it’s not even how a competent lab works. It’s how a video game works, the pixellated avatar personally touching every puzzle. Real science is nothing if not collective, and collective is exactly what this book cannot allow, because all the credit has to be handed to one man.
The institutions that aren’t science fare no better. Grace charges onto a guarded military base by sprinting past a single sentry, as though the most important facility on Earth were less secured than an airport gate. Characters are flown supersonically around the planet for meetings, in a world that has somehow forgotten videoconferencing exists. And when the famine math finally gets done (halfway through the book) someone divides the world’s calories by a survival ration, arrives at a horrifying number, and the room’s response is to propose detonating nuclear weapons in Antarctica to warm the oceans. The leap from “we have a problem” to “let’s nuke a continent” happens with the breezy confidence of people who have never met a logistics chain. Why? All of this is because we have to pretend that Grace, Stratt, and their half-dozen cohorts with complete authority are the only ones who can save us.
And then there’s history, which the book gets wrong in a way that’s… well, you be the judge. Stratt starts a scene by saying she was a history major (which functions as a warning that history is about to be mangled). We’re told that before the Industrial Revolution, all human labor went to producing and moving food. Even Rome is reduced to a glorified grain-logistics operation. And, yes, it’s true agriculture is labor intensive. But this skips the roughly two hundred thousand years of human existence before agriculture, when most societies spent a few hours a day feeding themselves, and the rest doing other things. History and sociology are distorted in other ways, too, so that Stratt can justify her draconian measures. We’re told the US would go to war to keep from losing half of its population to famine, when the US is by far the largest exporter of food on the planet. We’re told China is perpetually on the brink of famine, a claim which is half a century out of date.
The Indispensable Man
Every territory in this book — the physics, the biology, the scientific community, the military, the global economy, the historical backdrop — is charted exactly as far as the hero’s footprints go, and no further. Along his route, vivid detail, excitement and adventure, flashy science. One step off the road, the coastline turns to rumor, the fogs descend, and you sink into quicksand. It’s a map drawn for a single traveler: apparently meticulous where he walked, but otherwise blank.
And the blank quarters are all of a type. The map goes vague precisely where a true survey would have drawn other people into the center of things: the colleagues, the institutions, the teams that would share glory. The terra incognita isn’t random. It’s wherever someone other than Grace would have had to be the hero. It’s a map drawn to keep one man at the center.
So why do all roads lead to Dr Ryland Grace? That’s part two.
