--- product_id: 8662964 title: "A Deepness in the Sky (Zones of Thought, 2) Mass Market Paperback – January 15, 2000" brand: "vernor vinge" price: "€ 17.96" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.hr/products/8662964-a-deepness-in-the-sky-zones-of-thought-2-mass store_origin: HR region: Croatia --- # A Deepness in the Sky (Zones of Thought, 2) Mass Market Paperback – January 15, 2000 **Brand:** vernor vinge **Price:** € 17.96 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** A Deepness in the Sky (Zones of Thought, 2) Mass Market Paperback – January 15, 2000 by vernor vinge - **How much does it cost?** € 17.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/8662964-a-deepness-in-the-sky-zones-of-thought-2-mass) ## Best For - vernor vinge enthusiasts ## Why This Product - Trusted vernor vinge brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Full description not available ## Images ![A Deepness in the Sky (Zones of Thought, 2) Mass Market Paperback – January 15, 2000 - Image 1](https://m.media-amazon.com/images/I/81SKH5vmTdL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars "Let the Bad Guys Win Every Once in a While" *by J***D on Reviewed in the United States on March 15, 2010* Set twenty thousand years earlier than  A Fire Upon The Deep , Vernor Vinge's second book in the Zones of Thought universe shares little and requires nothing of its companion volume. It's action alternates between the inhabitants of an alien world and human observers concealed in orbit above. The Spiders have developed pre-space flight technology and struggle with the 250-year freeze-and-thaw cycle of their planet's On/Off variable star. The orbiting humans consist of two factions. The Qeng Ho have goals of trade and communication. The Emergents have the more direct agenda of conquest and domination. As the book proceeds, we watch the Spiders develop technically and socially. Simultaneously, the more advanced Emergents and Qeng Ho intrigue, fight, integrate, intrigue and fight. It all works out much better than it should.Like Vinge's other fiction, this book is host to a number of "big ideas" that take the stage along with the actions and inactions of the characters. They include:An alien species--the Spiders--that seems far less alien than they really should. What seems like bad writing through much of the book is given a reasonable explanation in the end. These creatures are interesting and even--heaven help me--cute.A variable star turns on and off at regular intervals. The possible explanations are intriguing as are its effects on the evolution of life on its planets.A tailored "mindrot" virus produces various neurological effects, including an exaggerated ability to concentrate called "Focus." The virus is both a disease and an altered state that makes workers diligent, productive and savant-like. It has uses and abuses, not always easy to distinguish.A flexible, self-organizing network technology constructed of large numbers of simple processors massively interconnected. The security and flexibility of the resulting "mesh networks" are explored by their Qeng Ho and Emergent users.If you plan to also read  A Fire Upon The Deep , then read it first for the most enjoyable experience. That said, this book can stand on its own and is good, enjoyable space opera. The story has its darker elements, but is well-worth a persistent reading. With good justification, it is considered one of science fiction's classics. ### ⭐⭐⭐⭐ 4.0 out of 5 stars fun read *by A***C on Reviewed in the United States on February 8, 2024* While the sci-fi elements of this were more low key that book one, I enjoyed this one more. The character development of both the humans and spiders was well done. Also really enjoyed the ending as it was satisfying while still leaving room for a book three.IMO the enslaved emergents and their role as part of the computer system is somewhat similar to the role LLMs are now starting to be employed for. The authors description of why you need humans rather than a code basically describes what LLMs are good at. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars So High, So Low, So Many Things to Know *by A***G on Reviewed in the United States on May 30, 2014* Eight thousand years into the future, the humankind has undergone "The Age of Failed Dreams". There is no "strong AI", no complex nano-machines or general assemblers, and no faster than light travel or communication. Yet humans travels between the stars, terraform planets, have encountered two (and are about to encounter the third!) intelligent species; medical advances, suspended animation, and relativistic time dilation aboard Bussard Ramjet ("ramscoop") equipped ships has drastically expanded lifespans. Since hardware has not advanced much in recent times, programming rarely involves writing new code, but rather adapting layers and layers of centuries old code (some going back to "The Old Earth") to new tasks and environments. There are positions such as "programmer-at-arms" and "programmer-archaeologist".The Qeng Ho (pronounced "Cheng Ho", after Zheng He -- a Ming Dynasty Chinese seafarer who has ventured with enormous fleets to the coast of Africa, Arabia, and the Malay Archipelago) is a relatively liberal human culture that trades between the stars and uses the UNIX epoch as its time system. Qeng Ho undertakes an expedition to the On-Off star (named so as it periodically turns itself on for 35 years, and then turns itself off for the next 215 to relight again in a highly predictable manner) 50 light years away from their starting point, the biggest wonder of the universe close to the known Human Space. Decision to undertake the expedition is made when they discover (by capturing spark-gap radio signals in Morse-like code) the only planet in its orbit is home to a civilization of Spider-like creatures who live in a world not dissimilar from the human twentieth century (they hibernate when the On-Off is off, so progress is interrupted by 215-year "darks").On the way there, they are (as expected) met by the "Emergents", a totalitarian human civilization that has recently emerged from a dark age (a major theme in the book are civilizations losing advanced technology including space travel and falling back into barbarism) and uses "Focus", a particularly nasty combination of mind control and slavery. Emergents ambush the Qeng Ho and are able to Focus many of them, but as a result of the Qeng-Ho Emergent conflict, neither the Emergent nor the Qeng Ho ships are capable of traveling back to their home worlds. They must now await the time that the Spider civilization advances to the point where they can repair their ramscoops.There are several lines in the story: the lives of Qeng Ho and Emergents in orbit around the On-Off star and preparing for contact with the Spiders; the story of a liberal-minded group of Spiders centered around "Sherkarner Underhill", who is a (quoting a character in the book) "von Neumman, Minsky, Einstein..." in one. Finally, there is the back-story of the Qeng Ho and human progress in space, told by Pham Nuwen. Pham Nuwen -- also a character in the earlier Fire Upon The Deep -- was born a medieval prince on a fallen colony world, but has become a Great Man of the Qeng Ho and a founder of its modern incarnation.This summary does very little justice to the book as is each chapter is laden with fascinating ideas. Dr. Vinge is a Computer Scientist and a mathematician and there is the above-mentioned discussion of what programming would be like in the future. Sensor networks and distributed systems / networking in general play a huge role in the story and are portrayed realistically (I say this as a developer working close to that space). It is quite possibly a true work of "Computer Science fiction". Vinge has popularized the idea of The Singularity, yet through a plot device introduced in "Fire Upon The Deep" The Singularity does not happen in the section of the Galaxy that contains the Qeng Ho space and our Earth. The Spider story-line is just plain fun to read at times, as it harkens back to our stories of greater inventions and scientific progress during what future humans depicted in the story call "The Dawn Age". Humans remain humans and Spiders are deliberately depicted in a humanized way: love is a strong part of each of the sub-stories.One thing to keep in mind is that the book is rather dark in places. The author rightly avoids glorifying totalitarianism: we don't see philosopher kings, instead we see sadistic, compulsively lying, and brutal apparatchiks of tyranny who own human beings and plot against each other, all while claiming to be working for the "common good". Slavery is depicted in its full brutality and not in a "Gone In The Wind" matter: we see brain damage from Focus, humans being given as gifts, and being reduced to machines. The aliens in the story may literally resemble giant spiders living in dark (to the human eyes -- the spiders can see UV) quarters, but the most grotesque monsters depicted are human. In all, the graphic nature of Emergent cruelty is not hidden, which at times makes the book difficult to read (I would not recommend this book to younger readers for this reason). However, the graphic and realistic portrayal is justified as a welcome and refreshing balance to much of the fiction that glorified totalitarian societies from Ancient Sparta to today's tyrants. Some reviewers objected to such a "one-sided portrayal", but it matches closely the actual narrative told by victims of totalitarianism.In all this is one of the books that demonstrates clearly how text can show what no motion picture can: while the plot could make for a great movie or a movie series, much of what is describes would be nearly impossible to properly convey on a screen. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/8662964-a-deepness-in-the-sky-zones-of-thought-2-mass](https://www.desertcart.hr/products/8662964-a-deepness-in-the-sky-zones-of-thought-2-mass) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-24*