Rainbows End is a 2006 science fiction

Science fiction

Science fiction is a genre of fiction dealing with imaginary but more or less plausible content such as future settings, futuristic science and technology, space travel, aliens, and paranormal abilities...

 novel by Vernor Vinge

Vernor Vinge

Vernor Steffen Vinge is a retired San Diego State University Professor of Mathematics, computer scientist, and science fiction author. He is best known for his Hugo Award-winning novels and novellas A Fire Upon the Deep , A Deepness in the Sky , Rainbows End , Fast Times at Fairmont High ...

. It was awarded the 2007 Hugo Award for Best Novel

Hugo Award for Best Novel

The Hugo Awards are given every year by the World Science Fiction Society for the best science fiction or fantasy works and achievements of the previous year. The award is named after Hugo Gernsback, the founder of the pioneering science fiction magazine Amazing Stories, and was once officially...

. The book is set in San Diego, California, in 2025, in a variation of the fictional world Vinge explored in his 2002 Hugo-winning novella "Fast Times at Fairmont High

The Collected Stories of Vernor Vinge

The Collected Stories of Vernor Vinge is a collection of science fiction short stories by Vernor Vinge. The stories were first published from 1966 to 2001, and the book contains all of Vinge's published short stories from that period except "True Names" and "Grimm's Story".-Bookworm, Run!:Also...

" and 2004's "Synthetic Serendipity". Vinge has tentative plans for a sequel, picking up some of the loose threads left at the end of the novel.

The many technological advances depicted in the novel suggest that the world is undergoing ever-increasing change, perhaps destined for a technological singularity

Technological singularity

Technological singularity refers to the hypothetical future emergence of greater-than-human intelligence through technological means. Since the capabilities of such an intelligence would be difficult for an unaided human mind to comprehend, the occurrence of a technological singularity is seen as...

, a recurring subject in Vinge's writing (both fiction and non-fiction).
The novel introduces us to Robert Gu, a man slowly recovering from Alzheimer's disease

Alzheimer's disease

Alzheimer's disease also known in medical literature as Alzheimer disease is the most common form of dementia. There is no cure for the disease, which worsens as it progresses, and eventually leads to death...

 thanks to advances in medical technology.