Skip to main content

The Three-Body Problem (SF) - Cixin Liu ***

I'm reviewing this book at the suggestion of one of my Buy me a Coffee supporters. I put off reading it for quite a while due to a perverse aversion to reading a book, or watching a TV show, that everyone is raving about... but I had to submit in the end, and I'm glad I did. There are elements of the book I loved, and aspects that really grated.

What was brilliant was Cixin Liu's evocation of the impact of the Cultural Revolution in China on academics. The character whose life threads through the book, Ye Wenjie, an astrophysicist who witnesses her father's murder by Red Guards is remarkable and I would have been happy reading a straight lab lit novel of her experiences without the aspect of alien contact that takes over the plot. When I was at school, a young history teacher got in trouble by getting all the class to obtain a copy of the Little Red Book - learning about this period in China is one of the few details I remember from school history.

I was also impressed with the way that initially Liu brings in plenty of real science. I was thinking of commenting that this wasn't just SF, it was SCIENCE fiction until reading further. And much of the book is very readable. But there were also those issues.

Firstly, long chunks of the book feature a character's experience in a weird virtual reality game, called Three Body, of which the significance is not revealed until well into the book (so I won't give it away here). I found these sections tedious in the extreme - it was far too much like listening to someone's detailed description of their dreams. 

Then there was the underlying premise of alien contact and future invasion of the Earth. Of course, this has featured many times in science fiction, and Liu makes it different and interesting by factoring in the sheer length of time it's going to take the alien fleet to arrive at Earth. For that matter, the consideration of whether or not we ought to make aliens aware of our existence is always interesting. But the driving factor here of people hating humanity so much they want aliens to destroy us, or naively think, with no evidence whatsoever, that the aliens will be beneficial and sort out our problems for us, didn't work for me.

There were also some technical issues. I would overlook the history of science error of reading far more into the cosmic background radiation than would have been known in the 1960s. But I wasn't happy about employing the classic quantum entanglement fallacy of thinking that it can be used to send instantaneous messages (it can only send random values), and simply couldn't engage with the idea that two protons could be used to produce mass illusions and to give the appearance of adding randomness to the laws of physics. (Also if this randomness had happened, the physicists would surely be talking about Noether's theorem, which isn't mentioned.)

A final moan concerns the understanding three body problem itself - central to the plot. The assumption in the book seems to be that this classic gravitational interaction problem, where three or more bodies interacting become chaotic is intractable. In reality, while absolute complete solutions are impossible, we can produce very good approximate solutions - so the idea of pure chaotic unpredictability that lies at the heart of the book doesn't make sense. For example, our solar system is a far more than three body problem, yet we can predict orbits thousands of years into the future. Yes, there's some uncertainty. So, for instance, current modelling gives Mercury a 1% chance of leaving its orbit and hitting Venus in the next few billion years. But we have no problem making good predictions of what will happen in the shorter term.

I don't think I'm going to bother with the follow up books. It was an interesting read - but didn't work as well for me as it clearly has for many readers.

Paperback:   
Kindle:  
Using these links earns us commission at no cost to you
These articles will always be free - but if you'd like to support my online work, consider buying a virtual coffee:
Review by Brian Clegg - See all Brian's online articles or subscribe to a weekly email free here

Comments

Popular posts from this blog

Ignorance: How it drives science – Stuart Firestein *****

This is a delightful little book that really gets you thinking. I stress the ‘little’ part not as a negative, but as a good thing. There is nothing worse than fat, bloated popular science books where the author feels they have to get 120,000 words to be taken seriously. This is the sort of book that can be read in a couple of hours – but you will get so much more out of it than one of those tedious doorstops. The premise underlying the book is in once sense extremely simple, yet is fundamental to an understanding of what science is and what scientists do. And it is an understanding that is totally at odds with the typical way science is portrayed both in university lectures and popular science books. As Stuart Firestein points out, what is important is not the facts, but rather the area of ignorance. The interesting part and the fundamental heart of science is not about what we know, but about what we don’t know and where we want to look next. Take this lovely quote: ‘Working ...

Who Invented the Computer? – Ian Watson

Ian Watson is the author of  The Universal Machine  and featured in a recent  Four Way Interview . Saturday June 23 2012 was the centenary of the birth of Alan Turing, the troubled genius who invented the modern computer. Why though do so few people recognize his name and his great achievements? In 1936 English mathematician Alan Turing, published a paper,  On Computable Numbers, with an application to the Entscheidungsproblem . This became the foundation of computing. In it Turing presented a theoretical machine that could solve any problem that could be described by instructions encoded on a paper tape. A Turing Machine could calculate square roots, whilst another might solve Sudoku puzzles. Turing demonstrated you could construct a single  Universal Machine  that could simulate any Turing Machine. One machine solving any problem for which a program could be written – sound familiar? He’d invented the computer. Then,  computers  were peop...

The Star Book – Peter Grego ****

This attractive landscape format book combines an excellent introduction to the stars and basic astronomy with a set of star maps, plus in depth looks at some of the stars featured, with a  bonus section on the solar system. Amazon says it’s a hardback, but in fact it’s a paperback with a rather ingenious cover – you can’t tell from the photo, but the words ‘The Star Book’ are punched through as a series of holes that show the white paper of the next page beneath. Like many astronomy/space books, the cover lacks shelf appeal because it is mostly black, but at least there is some original thought here. Unlike many books in this format which tend to concentrate on the pictures, there is a good deal of excellent text by Peter Grego, so there was no feeling that you were only getting the star maps and star ‘biographies’, something these days much more suited to an iPad or smartphone app. Instead, the opening 30 or so pages give a very good introduction that would be valuable to ...