Neal Stephenson's Anathem

I was struck by the depth of this book – both ideas and its insightful prose. Let's begin with a piece of prose:

So I looked with fascination at those people in their mobes, and tried to fathom what it would be like. Thousands of years ago, the work that people did had been broken down into jobs that were the same every day, in organizations where people were interchangeable parts. All of the story had been bled out of their lives. That was how it had to be; it was how you got a productive economy. But it would be easy to see a will at work behind this: not exactly an evil will, but a selfish will. The people who'd made the system thus were jealous, not of money and not of power but of story. If their employees came home at day's end with interesting stories to tell, it meant that something had gone wrong: a blackout, a strike, a spree killing. The Powers that Be would not suffer others to be in stories of their own unless they were fake stories that had been made up to motivate them. People who couldn't live without story had been driven into the concents or into jobs like Yul's. All others had to look somewhere outside of work for a feeling that they were part of a story, which I guessed was why Saeculars were so concerned with sports, and with religion. How else could you see yourself as part of an adventure?

[ mobes = cars

  concents = university, but cloistered with outside contact only once every ten years

  Yul = main character, his job is as a wilderness guide – think Alaska, Nepal

  Saecular = the world most people inhabit

]

Good Science Fiction is always part social commentary – by constructing another world that is often the same but subtly different, the author is allowed the freedom to make observations about the way people live and what gives life meaning. Stephenson does this by inverting some of our social institutions (the cloistered university), and changing the terms for many things which forces the reader to consider what exactly he is getting at, with the added insight he intends.

But all this is hung around the main story which is what really makes Anathem worth reading: Stephenson takes us on a romp through current theoretical physics which asks the following questions: Is ours the only universe, our could there be multiple? We can only see to the edge of our universe, which is the distance light has been able to travel since the formation – so anything beyond that boundary is invisible to us at this time. That doesn't preclude there being other 'universes' that are currently beyond that boundary...

Would other universes be the same as ours? Supporting this would be the observation that there is only a finite number of atoms (Hydrogen through Uranium, plus the few short-lived lab made ones). If there are an infinite number of universes, and finite types of atoms, then arrangements of atoms would necessarily repeat, and there would be virtual copies of the entities in this universe in other universes.

Throwing a monkey-wrench into this is the idea that the constants we observe (the charge of an electron, for example) needn't all be the same everywhere. This is where the anthropic principle comes into play: We could necessarily find ourselves only in a universe where the constants are very close to what they are – too large of deviations and 'we' wouldn't be present to observe them. But within some narrow boundaries, we, or beings very much like us, could exist and observe. Stephenson makes very good use of this last point late in the story...

Finally, would it be possible for us to experimentally determine if ours is a lone universe or if it is just one of many (or one of an infinite many)? Are there interactions that could be observed that would reveal the existence of multiple universes – of other ways of being? Part of what leads physicists down this path is the indeterminate-ness of quantum electrodynamics. Is Schrodinger's cat alive or dead? How, exactly, does the quantum field collapse into the state we observe? Is there a universe in which the cat is alive even though it is dead in this one? When world tracks come close together, could there be transfer of information?

Neal Stephenson spins a yarn of 'What If?' around all these ideas that creates a top-notch story set in an instance of top-notch world building where everything plays out as it could – somewhere. And that somewhere is Arbre which has eerie parallels to the world in which we live – and astounding differences.