Abstract :
Since inception, Electronics Letters has witnessed a transformation of its subject matter, far beyond that originally imagined. Now, following its fortieth anniversary, Electronics Letters is embracing the challenges of the future by introducing the new and exciting concept of Insight Letters. Written by renowned experts, Insight Letters are intended to communicate to an expert readership, visionary and speculative ideas in new and emerging areas across science and technology. Looking over the horizon, each Insight Letter will provide an expert´s perspective and forecast of where the current technology is leading and what the challenges facing the future generation of engineers might be
