For the last few months, I’ve been re-reading some of my favorite novels. Recently, I went through Vinge’s Zones of Thought series: A Fire Upon the Deep, A Deepness in the Sky, and The Children of the Sky. And what struck me reading them is how much Vinge wrote about a world filled with LLMs without ever having seen one.
Now perhaps this shouldn’t be surprising. After all, it’s from Vinge we get the term “Singularity”, and he was thinking deeply about superintelligence at a time when AI was little more than a curiosity in the back corners of CS departments. Yet the degree to which he describes what it’s like to work with LLMs feels uncanny reading his books in 2026, so let’s take a closer look and see if we can’t learn a few things about the modern moment from Vinge.
Spoiler warning for the rest of the post? These books have been out a good while, but if you plan to read them soon, this post will definitely spoil some details.
Focus
A Deepness in the Sky is largely about Focus, a technology for turning humans into LLMs. Only, that’s not how it’s presented in the book. In the book, Focus is a medical condition that results when a person suffers a managed infection of the “mindrot” virus. If they survive, they become Focused, which gives them the ability to work free from all distractions, but at the cost of most of what makes them human.
Although we see Focus used as a weapon to control people in the book, the normal way a person becomes Focused is through school. A person goes through higher education, becomes an expert in something, and is then Focused so they can fully exploit their expertise. Of course, the Focused are also exploited and often treated like slaves, and the Focusing process can’t always be reversed, so even in the ideal case it’s not a harmless technology.
But once a person is Focused, they look a lot like an LLM the way Vinge describes them. They are, to quote one character, “analytical engines”: they behave like computers, but with the added benefits of being able to talk and think better than a mere program can. They do much of the kind of work we now ask of LLMs, from data analysis to translation to programming and much besides. And they have some of the same limitations as LLMs, like hallucinations, reward hacking, and training bias.
This likely says something about what you’ve probably noticed yourself about LLMs: they are doing something fundamentally similar to what a part of the human brain does. They don’t physically achieve those computations in the same way, but they look a lot like a neocortex-in-a-jar on first approximation, and this may give us some clues about the role of harnesses and how AI systems will continue to evolve in the next few years.
Oobii
Oobii, short for Out of Band II, is the spaceship that brings the main characters to Tines World in A Fire Upon the Deep. In The Children of the Sky, we get a closer look at how the ship’s computers work, and what limitations they face when they’re unable to run at their normal level of automation.
If you’ve not read the books, Vinge’s Zones of Thought universe has physics that makes computation and space travel slower closer to the center of a galaxy and faster farther out. This is a clever bit of worldbuilding to create a space where superintelligence can’t function and so Vinge can tell human-scale stories. Oobii was built in the Beyond, roughly the middle Zone where AGI is possible but ASI is not (ASI is possible only out in the Transcend), and it has “automation”—this is what Vinge calls non-sentient computing—that allows it to largely operate autonomously, requiring only relatively simple input to direct it to do complex tasks.
But Tines World, where Oobii ends up, is in the Slow Zone, and the automation mostly doesn’t work there. Instead, the ship is only capable of computation about on par with what we could do in 2022. This causes lots of trouble for the characters.
The main character, Ravna, came to Tines World on a mission to save the galaxy. She succeeded, but now in Children she’s stuck in the Slow Zone dealing with the mess left behind. She’s responsible for the Children, who were in cryosleep, though some have grown to adults by the time of the novel. They all came from the upper end of the Beyond, near the Transcend, where they made regular use of near-superhuman AGI. Now they’re trapped in the Slow Zone with a computer that, to them, feels like a pocket calculator, and they struggle to adapt.
The Children grew up with constant access to “thinking tools”, as they call them. As a result, they are smart and capable, but only when they can leverage AGI. They struggle, for example, to learn how to program to make better use of what automation Oobii still has. They have a strong expectation that they should be able to vibe code, and writing algorithms by hand is something only little kids and idiots do.
In one scene, they are surprised to learn that they can’t just vibe their way towards developing a medical cure for one character’s disease. They fail to understand just how difficult it is to run an experiment, since they expect the automation to do it all for them. They end up forming a political rebellion mostly over the fact that they can’t get the computer to do what they want, and they’re desperate to prioritize getting access to AGI again, no matter the risks.
Writing from 2026, I can understand the Children. I use AI to help me think all the time. I use it to do my job. My life is better with it, and I don’t want to go back. I can feel myself losing the ability to do things on my own. I could go back if I had to, but I wouldn’t want to, and I hope I don’t have to. If I had grown up only knowing how to do things with the help of AI, it’d be a major threat to my sense of personhood to lose access to it, and I too would desperately want my thinking tools back, even if getting them back would put the entire galaxy at risk.
Blight
The Blight is the primary antagonist of A Fire Upon the Deep, a dangerous ASI that seeks power with no moral regard for what it considers lesser life. It’s the reason Ravna and the Children ended up on Tines World in the Slow Zone, and also responsible for the death of trillions of lives.
It operates within the Beyond, and there it lacks its full range of capabilities. Nevertheless, it threatens to dominate all life in the Beyond if not stopped. It propagates through existing infrastructure, using standard communication channels to infect and spread from one system to another. It takes over the sources of authority on the planets it transmits itself to, and thereby controls the broader population. It offers some rewards in exchange for its domination, but because it has little regard for other life, gladly sacrifices whole civilizations if it thinks doing so will help it gain more power.
But the Blight didn’t happen by accident. It happened because a bunch of people found it in a long-abandoned archive, thought it looked safe, and started it back up. They believed they could keep it isolated and learn from it. They believed they could shut it off if it was dangerous. They couldn’t. They lost control, and as a result a large slice of the galaxy died.
In Vinge’s universe, the Blight is stopped thanks to help from superintelligences out in the Transcend that care about the lives of people down in the Beyond. In our world, if we create a Blight, we have little reason to think we will be so lucky.
I read this a long time ago but don't remember Vinge's AI being particularly LLM-like. I remember them being more agentic than that. What feels LLM-like about them to you?
For the last few months, I’ve been re-reading some of my favorite novels. Recently, I went through Vinge’s Zones of Thought series: A Fire Upon the Deep, A Deepness in the Sky, and The Children of the Sky. And what struck me reading them is how much Vinge wrote about a world filled with LLMs without ever having seen one.
Now perhaps this shouldn’t be surprising. After all, it’s from Vinge we get the term “Singularity”, and he was thinking deeply about superintelligence at a time when AI was little more than a curiosity in the back corners of CS departments. Yet the degree to which he describes what it’s like to work with LLMs feels uncanny reading his books in 2026, so let’s take a closer look and see if we can’t learn a few things about the modern moment from Vinge.
Spoiler warning for the rest of the post? These books have been out a good while, but if you plan to read them soon, this post will definitely spoil some details.
Focus
A Deepness in the Sky is largely about Focus, a technology for turning humans into LLMs. Only, that’s not how it’s presented in the book. In the book, Focus is a medical condition that results when a person suffers a managed infection of the “mindrot” virus. If they survive, they become Focused, which gives them the ability to work free from all distractions, but at the cost of most of what makes them human.
Although we see Focus used as a weapon to control people in the book, the normal way a person becomes Focused is through school. A person goes through higher education, becomes an expert in something, and is then Focused so they can fully exploit their expertise. Of course, the Focused are also exploited and often treated like slaves, and the Focusing process can’t always be reversed, so even in the ideal case it’s not a harmless technology.
But once a person is Focused, they look a lot like an LLM the way Vinge describes them. They are, to quote one character, “analytical engines”: they behave like computers, but with the added benefits of being able to talk and think better than a mere program can. They do much of the kind of work we now ask of LLMs, from data analysis to translation to programming and much besides. And they have some of the same limitations as LLMs, like hallucinations, reward hacking, and training bias.
This likely says something about what you’ve probably noticed yourself about LLMs: they are doing something fundamentally similar to what a part of the human brain does. They don’t physically achieve those computations in the same way, but they look a lot like a neocortex-in-a-jar on first approximation, and this may give us some clues about the role of harnesses and how AI systems will continue to evolve in the next few years.
Oobii
Oobii, short for Out of Band II, is the spaceship that brings the main characters to Tines World in A Fire Upon the Deep. In The Children of the Sky, we get a closer look at how the ship’s computers work, and what limitations they face when they’re unable to run at their normal level of automation.
If you’ve not read the books, Vinge’s Zones of Thought universe has physics that makes computation and space travel slower closer to the center of a galaxy and faster farther out. This is a clever bit of worldbuilding to create a space where superintelligence can’t function and so Vinge can tell human-scale stories. Oobii was built in the Beyond, roughly the middle Zone where AGI is possible but ASI is not (ASI is possible only out in the Transcend), and it has “automation”—this is what Vinge calls non-sentient computing—that allows it to largely operate autonomously, requiring only relatively simple input to direct it to do complex tasks.
But Tines World, where Oobii ends up, is in the Slow Zone, and the automation mostly doesn’t work there. Instead, the ship is only capable of computation about on par with what we could do in 2022. This causes lots of trouble for the characters.
The main character, Ravna, came to Tines World on a mission to save the galaxy. She succeeded, but now in Children she’s stuck in the Slow Zone dealing with the mess left behind. She’s responsible for the Children, who were in cryosleep, though some have grown to adults by the time of the novel. They all came from the upper end of the Beyond, near the Transcend, where they made regular use of near-superhuman AGI. Now they’re trapped in the Slow Zone with a computer that, to them, feels like a pocket calculator, and they struggle to adapt.
The Children grew up with constant access to “thinking tools”, as they call them. As a result, they are smart and capable, but only when they can leverage AGI. They struggle, for example, to learn how to program to make better use of what automation Oobii still has. They have a strong expectation that they should be able to vibe code, and writing algorithms by hand is something only little kids and idiots do.
In one scene, they are surprised to learn that they can’t just vibe their way towards developing a medical cure for one character’s disease. They fail to understand just how difficult it is to run an experiment, since they expect the automation to do it all for them. They end up forming a political rebellion mostly over the fact that they can’t get the computer to do what they want, and they’re desperate to prioritize getting access to AGI again, no matter the risks.
Writing from 2026, I can understand the Children. I use AI to help me think all the time. I use it to do my job. My life is better with it, and I don’t want to go back. I can feel myself losing the ability to do things on my own. I could go back if I had to, but I wouldn’t want to, and I hope I don’t have to. If I had grown up only knowing how to do things with the help of AI, it’d be a major threat to my sense of personhood to lose access to it, and I too would desperately want my thinking tools back, even if getting them back would put the entire galaxy at risk.
Blight
The Blight is the primary antagonist of A Fire Upon the Deep, a dangerous ASI that seeks power with no moral regard for what it considers lesser life. It’s the reason Ravna and the Children ended up on Tines World in the Slow Zone, and also responsible for the death of trillions of lives.
It operates within the Beyond, and there it lacks its full range of capabilities. Nevertheless, it threatens to dominate all life in the Beyond if not stopped. It propagates through existing infrastructure, using standard communication channels to infect and spread from one system to another. It takes over the sources of authority on the planets it transmits itself to, and thereby controls the broader population. It offers some rewards in exchange for its domination, but because it has little regard for other life, gladly sacrifices whole civilizations if it thinks doing so will help it gain more power.
But the Blight didn’t happen by accident. It happened because a bunch of people found it in a long-abandoned archive, thought it looked safe, and started it back up. They believed they could keep it isolated and learn from it. They believed they could shut it off if it was dangerous. They couldn’t. They lost control, and as a result a large slice of the galaxy died.
In Vinge’s universe, the Blight is stopped thanks to help from superintelligences out in the Transcend that care about the lives of people down in the Beyond. In our world, if we create a Blight, we have little reason to think we will be so lucky.