It's hard to know where to start with this book. On the one hand, I want to say it was amazing and highly original and extremely thought-provoking. On the other I want to say it was often confused, contradictory and obscure. Well, I guess I just did :)
After wars and then radioactive dust obliterated much of the planet, the majority of the human population fled to colonies on Mars and elsewhere, taking their own personal android servant. Some stayed behind, either because they had been contaminated by the dust or for whatever personal reason they have. With apartment buildings mostly empty and rubbish and dust everywhere, it's a bleak existence (and not actually terribly realistic - with hardly any vegetation left there shouldn't be any breathable air at all), yet life for the androids in the colonies must be worse if some are escaping and trying to have "normal" lives on Earth.
These androids have to be hunted down and "retired". Rick Deckard is a bounty hunter for the San Francisco Police Department, earning $1000 per andy. One of the other bounty hunters, Dave, retired two andys of a group of eight but was shot by the third, Roy Baty. Now Deckard has taken over the assignment and must track down and retire the remaining six, who are all masquerading as humans. The one test they have to distinguish these realistic machines is the Voight-Kampff test, an empathy test - because the one difference between humans and androids, they believe, is that the andys are incapable of feeling empathy.
When it was first published in 1968, it was set in 1991. Later editions changed that to 2021 - this edition is set in 2021. I expect they'll probably change it again in a few years. It's interesting that Dick had such little faith in us - that we would ruin the planet so quickly and absolutely - and such enormous faith - that we would be advanced enough, technologically, to escape it. Having given it such a short time frame, and no doubt excited by the advent of space exploration and television in the 60s, I get the impression Dick, and everyone else, had high expectations of human achievement.
The book is very different from the movie, so I'm not going to bring up Blade Runner except to say that if you've watched it, it won't have spoiled the book for you. Although it did lead me to expect some kind of revelation or focus on the possibility of Deckard being an android, which isn't the case. He's not an andy. The possibility looms because of the callous indifference the bounty hunters have towards the androids, their ability not to be taken in by their human appearance and to kill them. Ironically, Deckard suffers from too much empathy and starts feeling sorry for the andys. Briefly.
The post-apocalyptic aspects of this story interest me perhaps the most, but they're not all that satisfying. It's a horrible, horrible world, highly polluted and littered. There's a lot here that's unanswered, and doesn't always make sense. That closed-in feel of the movie is here - it has such a narrow geographical scope, with little world-building structure to hold it up. Who is running things? Some kind of government, but not the same kind as now. Why are abandoned suburbs still getting electricity and clean water? Where does the food come from if nothing can be grown? What kind of fuel do they use? How does the Mood Organ work and why do they need it? (perhaps to counter the bleakness.) There's mention of the Soviet Union and the UN, but nothing about any other country, giving the feeling that the United States is a lone land floating in a big empty sea with nothing to anchor it.
And what of Mercer? The empathy box? Grip the handles and you are drawn into a shared existence with everyone else who's gripping the handles of the box at the same time, bodily transported (it feels like) to a desolate desert where you climb along with old man Mercer up a hill, toiling and being hit by rocks which make you bleed in real life, only to suffer greater torment at the top and be sent to the tomb world to start again. Sounds like a complicated computer game but it's more like a religion. Empathy is the only thing that separates humans from androids, and the only way the humans left on Earth can dispel the utter lonliness of their existences. There are no children here.
There were too many contradictions here for my liking. When Rick tests Rachael Rosen and finds out she's a Nexus-6 android, he asks her "father" if she knows and he says "no", and it's evident from Rachael's reaction that she doesn't. But then later she's sent to seduce Rick (not a difficult task) to help the escaped Nexus-6 andys escape, again, or make it hard for him to retire them, especially Pris who looks the same as Rachael - and Rachael, when he realises and confronts her, tells him she's done it before, with other bounty hunters, and shares her knowledge and philosophy about being an andy. Which means that she's known she was an android all along, and that, what, she cares what happens to the others? But they're incapable of caring, that's the whole point. And she feels enough to kill Deckard's goat, because he loves it more than his own wife, and certainly more than her. That's vindictive. That's jealousy. That's feeling.
There are other things that bugged me, obscure things mostly, and I don't have the time or energy to read it over and over again until I got it. If it's possible to get. I still think it's an amazing book, and raises a lot of questions about what it means to be human and so on. It's also a quick read and, set in one single day and night, quite fast-paced. It's structured well, and, for a science fiction book, relatively easy to read. There are some very surreal scenes, like when Mercer "manifests", and some tense ones - the worse scene in the entire book, I found, was when Pris was cutting the legs off the spider. There's not a whole lot of violence and the ending wraps up quickly - there's no drawn-out fight scene, the andys aren't very confrontational or aggressive, unlike in the movie. They have superior intelligence but weren't designed to be killing machines.
Which begs the question: why do they need to be retired? They only have four years of life anyway, because their cells can't regenerate, and they just want to live their own lives. And if this is unacceptable then why create them that way? It doesn't make sense. I can understand the human need to kill any rogue andys, and the need to feel superior over another being etc., but why make them so realistic? And surely the need these rogue andys have to escape their servitude is a clear indication that they have dreams and aspirations like humans do, and therefore some amount of feeling?
"Do androids dream of electric sheep?" is a very good title, and meant literally. The humans aren't aspiring to make the world a better place or have children or anything like that, only to make enough money to buy an animal, or at the very least, an electric one, like Deckard's electric sheep. If he were an android, would he still have that desire? The humans measure empathy by how much they feel towards animals - the questions in the test measure reactions to bear-skin rugs and mounted deer's heads and meat for food. Yet despite this "empathy" they do nothing about making the few surviving animals' situations better; the empathy equates more to a possessiveness than to a genuine concern for the animal as another living being.
I'm just talking out my cluttered thoughts here, sorry to ramble on. You can go round and round with this book and never arrive at a satisfactory conclusion, but it's still worth the ride (if I were to use a cheesy line, which I just did, and won't change, because this has exhausted me and I'm falling back on cliches just to wrap it up).