Hybrid Humans by Harry Parker review – man and machine in harmony

What does it feel like to be 12% machine'? An ex-soldier who lost both legs in Afghanistan examines the implications of advances in medical technology with intelligence and humanity

It is now 13 years since Harry Parker stepped on an improvised explosive device in Afghanistan, creating a blast that would result in the loss of both legs. Alongside the physical pain of the subsequent weeks, months and years, he also had to cope with a profound change in his sense of self. He compares the experience to that of Gregor Samsa, the subject of Franz Kafka's The Metamorphosis - the strangeness of not being who you used to be, turned into something that sets you apart from those around you".

Equipped with two hi-tech prosthetic limbs, Parker can now walk holding hands with his wife and carry his children on his shoulders. From the outside, it would be easy to conclude that he has adapted extraordinarily well to the event - and he says that being an amputee feels normal". But he still considers himself to be a different person - a new body with a new identity" who is 12% machine".