We may already feel incredibly reliant upon technology, but will we be surrounded by sensors, feeding and receiving information, in just a few years' time? From sensors on the body that transmit medical information, to smart parking sensors enabling drivers to easily find a space in a city, the technology is already beginning to affect our everyday lives. Experts Professor Marta Kwiatkowska and Dr Niki Trigoni give their views where sensors could potentially be most successful, and what the challenges are.