Once in a while, one stumbles upon a work of such quality that one cannot help but to be baffled at how such a work could escape one’s notice for so long. Diaspora, written in 1997 by Greg Egan, is one of the most powerful, mind bending and far reaching book I have ever read.

As I have posted several times before, one of the drawbacks of many Sci-Fi representations and stories brought to the silver screen, is the difficulty in reaching the right balance between depicting a credible future, sometimes a distant future, while at the same time preserving some sense of ‘normality’ as well as traditional frames of references in order to not alienate the viewer. Unfortunately, this balance is rarely reached and most of Hollywood’s visualizations tend to be very limited and writers or directors seem content to show us the same old humans with the same old problems, values and physical characteristics, regardless of when in the future the story might be occurring. Just place these archaic visions of the past in front of a couple of futuristic looking buildings, add some fancy cars with doors that slide vertically and complete the package with the occasional gismo to obtain your average run-of-the-mill Sci-Fi flick.

While Sci-Fi literature offers many possibilities for more credible, fleshed out and geeky visions of the future, there has still been an over-reliance on ‘traditional’ humans as lead or even as only characters. This seems to have changed in the past few years, and the implications of Transhumanisn are increasingly being used as material for many Sci-Fi books. In Diaspora, Greg Egan describes in great detail how the ‘human race’ might split and evolve towards a post human future. While the process of becoming more than human will most likely be very gradual, with humans combining with machines and vice versa (a process that has already started with the adoption of pacemakers, Cochlear implants, prosthetic limbs, or even the mobile phone which has become a natural extension of ourselves), Egan portrays a future a few hundred years hence dominated by three main forms of beings: the Fleshers, ‘traditional’ humans with or without genetic modifications, the Gleisner Robots, robotic shells inhabited by human minds, and the Polis Citizens, the uploaded minds of humans ‘living’ in computer and simulated worlds. In addition, on rare occasions, the polis creates a new mind, a purely artificially conceived one, albeit very human in many ways.

Over a period of several thousand years, Egan traces the quest of some of these Polis Citizens as they attempt to prevent and then escape the destruction of our universe (an early consequence of this destruction is the end of the Fleshers, and thus, the end of humanity as we know it today). This quest will lead these highly advanced non-physical entities, our descendants, to some of the most far-reaching destinations the mind could possibly conceive.

Egan doesn’t shy away from grand mathematical and physical speculation, and for the average reader, his lengthy descriptions of the universe’s most innate workings will seem a bit tedious at times. But sticking through these sections is quite worth it as one is rewarded by an avalanche of fantastic and awe-inspiring concepts. There is plenty to ponder in Diaspora and anyone interested in what existence might be like as an uploaded mind, in a possible direction for the future of the human race, in parallel universes and multi-dimensions, in the potential for alien life, or simply in the infinite mystery and beauty of the cosmos, then this book is an absolute must-read.