The planiverse : computer contact with a two-dimensional world

by A. K. Dewdney

Paper Book, 2001

Status

Available

Call number

530.1/42 21

Library's review

Indeholder "Foreword: 2Dworld", "Arde", "A House by the Sea", "On Fiddib Har", "Walking to Is Felblt", "City Below Ground", "The Trek", "The Punizlan", "Institute", "Traveling on the Wind", "High on Dahl Radam", "Drabk the Sharak of Okbra", "Higher Dimensions", "Appendix", " Two-dimensional Science
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and Technology", " Physics", " Chemistry", " Planetary science", " Astronomy", " Technology", "Acknowledgments".

Bogen fortæller en rammehistorie om et computerkursus, hvor et program kaldet 2DWorld bliver anvendt til at simulere en 2-dimensionel verden. Tre af de studerende, Winston Chan, Hugh Lambert, Alice Little, gør det til et sommerprojekt at videreudvikle 2DWorld. Flere studerende kommer til i næste semester og simuleringen er nu ret omfattende. Atmosfære, have og en landoverflade med dyr og halvintelligente væsener er nu en del af det og den simulerede verden har også fået et navn Astria.
En dag begynder deres program til at kommunikere med Astria at opføre sig mærkeligt. Der kommer beskeder fra en YNDRD. Deres simulerede 2-d verden er kommet i synk med en rigtig 2-d verden Arde.

En slags uofficiel efterfølger til Abbott: Flatland. De uofficielle efterfølgere til den her er Ian Stewart': Flatterland og Dionys Burger: Sphereland. Samme genre som Donald E. Knuth: Surreal Numbers. Og på samme måde er rammehistorien både klistret og påklistret.
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Genres

Publication

London, Picador, Pan Books, 2001. xxxi, 245 p. : ill. ; 24 cm.

Description

The Planiverse is a classic book about life in a two-dimensional universe. A.K. Dewdney is a well-known author, and this is a well-known book, which is now brought back into print in a revised and updated edition. The book is written within the great tradition of Abbott's Flatland, and Hinton's famous Sphereland. Accessible, imaginative, clever, the book will appeal to a wide array of readers, from serious mathematicians and computer scientists, to science fiction fans

User reviews

LibraryThing member aethercowboy
Dewdney, a computer science professor, has his students work to develop a world that has only two dimensions (akin to our three dimensional world). The students develop an elaborate world complete with its own ecosystem and rudimentary AI. However, something happens, and their virtual world is
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somehow replaced with a real world, through which the students and professor have computer contact.

The world is still two dimensional, primitive in many ways, and advanced in others. The professor and students wish to learn more about the world without influencing their contact in a way that would violate something like Star Trek's Prime Directive.

The book is like a travelogue, containing details of the world of their 2-D contact, who calls himself YNDRD, and is in turn called by the students Yendred. He takes them on a pilgrimage and they all learn about the strange 2-D world Yendred inhabits.

This book is greatly inspired by Flatland with a little bit of Sufi mixed in. It should appeal to you if you're a fan of the former. I'm not sure if it is as appealing to fans of the latter, as I can only speak for myself, who is nearly obsessed with Flatland. Nevertheless, if you enjoy a good tale of 2-D worlds, then this will most likely fill that void (as long as the void has only a length and a height, with no width).
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LibraryThing member Gord.Barker
This is a story that comes from the computer lab of Kee Dewdney's graduate computer course. In here, they are modeling a 2-D world with its own ecology, inhabitants and rules. Something goes awry though and the computer console hooks up with YNDRD, a 2-D character that can here us. Similar to
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Flatland (which looked down), Planiverse looks through the characters and we can see all their internal structures. They find this fascinating since they only perceive each other as a series of horizontal lines.
The story follows YNDRD on his spiritual journey the culmination of which is his ascending into the third dimension and off the computer screen. A sad ending but a great story
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LibraryThing member shabacus
A lot of fun, and a better platform for the imagination than it is a story.

In "The Planiverse," we have a frame story that wraps around a travelogue through a two-dimensional world. The 2D world itself is fascinating; the frame story in our world, less so. The faux real-world contact was enough to
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make teenage me wonder if it could be true, but as an adult, it's a lot easier to see through the deception, and even to resent its intrusion into an otherwise interesting study.

It is clear that the author has put a lot of thought into how the science of a 2D world would work. Whereas Flatland explored the mathematical and social implications of such a world, the Planiverse gave us actual science, enough to make such a world feel claustrophobically plausible. However, the ending was nothing but pseudo-mystical oddness, designed to distract the reader from the lack of an ending, and totally at odds with the hard science nature of the earlier sections.

Recommendation: Great food for thought, and worth reading if you are of a scientific bent and like thinking about different dimensions. Don't approach it if all you want is a story, however.
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LibraryThing member mrgan
Even though I find the concept of this book super interesting, the book itself just bored me immensely. The same happened with Flatland, the original "two-dimensional universe" narrative. In both cases, I found the framing gimmick gimmicky, the prose tedious, and the math of the thing explained
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dryly and without clever insight. Maybe it's just me.
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Subjects

Language

Original language

English

Original publication date

1984

Physical description

xxxi, 245 p.; 19.6 cm

ISBN

0330280759 / 9780330280754

Local notes

Omslag: Ikke angivet
Omslaget viser et Martin Gardner citat foruden forfatternavn og titel
Indskannet omslag - N650U - 150 dpi
twodimensional

Pages

xxxi; 245

Library's rating

Rating

(64 ratings; 4.1)

DDC/MDS

530.1/42 21
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