“When I grab something hard, then I can feel it in the fingertips, which is strange, as I don’t have them anymore. It’s amazing,” said Robin af Ekenstam , who lost his hand when an aggressive tumour was discovered on his right wrist.

Smart buildings offer better energy efficiency and the kind of futuristic mod cons that appeal to many consumers, but some experts warn our appetite for new technology is putting us at risk from increasingly sophisticated cyber attacks .