Book Review: By Light Alone by Adam Roberts

A century or so from now, the problem of famine has been overcome by a technique that transforms hair into solar energy collectors that works by a kind of photosynthesis, so that nobody need eat food any more. This means that the poor must wear their hair long in order to survive, allowing them to soak up the sunlight, while the rich style their hair short as they can afford to eat food which has now become a luxury.

Read the rest of my review at SF Crowsnest.