Almost every page offers some new and seductive nugget of geeky jargon. "Vampire power" is the energy drained by electronic devices left on standby rather than switched off; apparently, this costs most of us about a fifth of our household electricity bills. If you're wearing a "Hug Shirt" impregnated with electronic sensors, you can get a virtual squeeze from a buddy anywhere in the world, sent via their mobile phone. "Mycoremediation" is the use of mushrooms to purify polluted land. Oyster mushrooms not only flourish on an oil spill, but actually clean it up too.
All this information is sandwiched between thick slices of polemic. The wide-eyed gusto does sometimes get a bit irritating: "Changing the world is a team sport, and there's a spot on that team for every person on the planet." But if that type of thing sends an uncomfortable shiver through your jaded old bones, Steffen has a message specifically for you: "Cynicism is often seen as a rebellious attitude in western popular culture, but in reality, our cynicism advances the desires of the powerful: cynicism is obedience."