Author: Ramez Naam
Publisher: Angry Robot
Published: August 2012; this edition published 2 April 2015
Genre: science fiction, thriller
Source: eARC from the publisher via NetGalley
Contains spoilers for book 1, Nexus. If you haven’t read it, you can check out my review here.
In book 1 of Ramez Naam’s posthumanist sf series, the key question was how best to introduce Nexus to the world. Do you give it to everyone or reserve it for an educated elite?
Kaden Lane made the democratic choice and uploaded the code for all to access. Now it’s out there, it’s open-source, and people are discovering all the fascinating possibilities of being able to connect your mind with others’. Unfortunately, it presents just as much opportunity for abuse, so Nexus gets used as a coercion tool for things like theft, slavery, murder and rape. All it takes is a programmer with the right tools to hack someone’s brain.
Kade is painfully aware of this. In Nexus, he proved himself to be a man who thinks carefully about the consequences of his actions and takes responsibility for them. Knowing that his work is being used to for such terrible crimes kills him, so he spends his days monitoring the use of Nexus, identifying abusers, and hacking their minds to stop them.
This is possible because he and his partners, Ilya and Rangan, wrote a “back door” into the Nexus 5 code before the ERD stole it from them. Kade has since changed the passwords, so the ERD continues to hunt him down. They want to eradicate the use of Nexus in the general population, while using the technology for their own purposes. The back door is the crux on which the story rests. It’s a good thing only because it’s used by someone as golden-hearted and dedicated as Kade, but will he always use it in the right way, for the right reasons? And who is he – or anyone – to decide what “right” is? It’s a simple question when, for example, Kade hacks a mind to stop a rape, but the prospect of the ERD hacking minds for the sake of state security is terrifying.
So Kade is on the run in Thailand, along with his friend Feng, the Chinese ex-solider who worked as Su-Yong Shu’s bodyguard. Su-Yong Shu was killed at the end of Nexus, but now exists as an uploaded consciousness, vastly intelligent but going insane without the sensory input of a body. She’s kept isolated on a server deep underground while her husband Chen tries to torture her into giving him one last scientific breakthrough before she self-destructs. Ling, Su-Yong’s eight-year-old posthuman daughter/clone is desperate to rescue her mother, but she cannot access the server and, in a moment of intense frustration, she reaches out with her mind and cripples Shanghai with what looks like a massive cyber attack.
Meanwhile, Sam Cataranes is hiding out in Thailand as Sunee Martin after abandoning the ERD in favour of the posthuman movement. Now Sam’s working with Nexus kids and discovering their boundless potential.
Such potential is also of interest to Shiva Prasad, a billionaire philanthropist who has worked hard to solve the world’s environmental problems but came to the conclusion that it’s now impossible for humanity to solve the problems it created. He wants to use Nexus to create a hive mind intelligent enough to find the necessary solutions, but for that he needs Kade and the back door.
Meanwhile, back in the US, ERD’s Neuroscience Director, Martin Holtzmann, faces a personal and moral dilemma. He took Nexus at the end of book 1, but he’s using it in secret because it’s illegal and he works for the organisation that’s trying to prevent the public from using it. It gets worse when he’s put in charge of experimenting on autistic Nexus children in an attempt to find a “cure”. The work disgusts him – not only is he fighting a technology he’s embraced, but he’s torturing children to do it. To cope with the stress, he uses Nexus to create an app that tweaks his body chemistry and releases opiates into his system. Unsurprisingly, he ends up with a drug addition.
The pressure to “cure” children with Nexus comes partly after a group calling themselves the Post-human Liberation Front (PLF) tries to assassinate the US President by hacking a Secret Service agent (another way of abusing Nexus – forcing people to work as soldiers and assassins, or simply hacking into their minds to spy). The PLF targets anti-Nexus political figures, but in doing so it exacerbates people’s fears of posthumans.
Crux is exactly like Nexus in that it speculates about the potential of an evolutionary technology while considering its moral implications and using all that to fuel an action-packed plot. It’s smart and entertaining, and Naam does a pretty good job of handling a large cast of POV characters. The narrative hops around a lot, but that didn’t really bother me.
That said, I felt like I was reading a lesser version of Nexus. The speculation I enjoyed so much in the first book feels pretty standard now. It’s all still pretty cool, but the book is so full of ideas that many of them get little more than a mention.
The overall positivity regarding Nexus also makes the book feel a bit light on substance, and this is something that bothered me in the first novel too. While I love that the series is optimistic about new technology rather than basing the plot on what goes wrong with it, that optimism occasionally eschews a more complex debate. It can also get annoying. Sometimes the novel feels like it’s just gushing about how super awesome Nexus is without developing much in terms of plot or character. Granted, Nexus is awesome, but raving about it isn’t necessarily good for the story.
It also tends towards melodrama. I felt like Crux was constantly using children to tug at my heartstrings, manipulating me in favour of Nexus, while turning me against the evil detractors and their (often justifiable) fears. Nexus can “cure” autism, allows parents to communicate with their babies in the womb, and lets adults experience the beautiful wonder of children’s minds. It helps children learn faster by absorbing knowledge from other children and generally just makes them sweet and fascinating and delightful. Anyone who opposes the use of Nexus or threatens the children in some other way is very easily converted into a villain simply because we all have to think of the children. And, well, yes we should, but I’m not fond of this particular cheap writing tactic.
We do see some of the bad sides of Nexus though (besides the coercion), and it gives you something to think about. Martin Holtzmann develops a drug addiction without even having actual drugs (that could be a novel in itself). The autistic Nexus children see those without Nexus as not being real people, and instantly ostracize a child who doesn’t have it. A class – or species – conflict is definitely coming. Ling takes out an entire city because of a tantrum. The novel, perhaps a bit too conveniently, avoids dwelling on the amount of death and destruction she so easily causes, thereby glossing over the consequences of having Nexus in a young or unstable mind. Nexus children won’t necessarily be as wholesomely wonderful as the ones Sam takes care of, but the novel almost always portrays them that way, with Ling as an anomaly.
Then again, maybe I’m asking too much of Crux. It’s still a strong, smart sf thriller and I’m kind of taking the things that make it cooler and asking, why couldn’t you tell me more about this? And yes, it gets melodramatic and some of its moral debates are simplistic, but no more so than loads of similar stories that I love. It didn’t do much to expand on the posthuman issue set up in Nexus, but that doesn’t make the topic any less interesting. So, if you liked Nexus, it’s worth seeing where Crux takes the story.