Permafrost

Permafrost
By Alastair Reynolds

Time travel is a venerable science fiction trope, so much so that various sub-genres of time travel story can be identified. Permafrost may remind us of of 12 Monkeys in its basic premise, which has it that in the year 2080 the world as we know it has gone to hell, the result of a total environmental collapse known as the Scouring. A group of scientists in Russia, however, have come up with a way to inject the consciousness of selected “pilots” into the minds of people living fifty years earlier by way of MRI machines. In this way they hope to avert catastrophe.

To try to explain more would risk getting caught in the “python-coils of paradox” that bedevil all such journeys into the past, and which the pilots themselves are keen to avoid. Suffice it to say that this is a short book that has many such coils, some of them twisting in unanticipated directions. The hero of the piece, for example, is an elderly woman and not an action hero, while the villains remain a mysterious whiteout. Reynolds, however, is one of the top writers in the field today and he’s capable of both going his own way and taking us with him.

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