The history of mobile digital wireless has seen a tapestry of minuscule change, marketing hype, and under delivery with periodic step changes in capability. The biggest leaps were 1 to 2G (Analogue to Digital) with 2.5G representing a slightly souped up version of 2G. Next came 3G (Multi-Media Support) with 4G providing a little more bandwidth and a few extra features. But 5G is the first system to have an IP base designed to be fully internet compatible. Perhaps equally significant is the realisation that horse trading between 3 & 4G bands cannot deliver 5G and new spectrum has to be made available. So 5G looks set to deliver more change into the mobile space than anything that has gone before. Whilst the future of mobility is hazy (to say the least) we can see Clouds and The Internet of Things developing fast, whilst user devices have somewhat stagnated with laptops, tablets, and a plethora of near identical mobile phones. The few attempts at wearable technology have failed to date whilst medical devices for the home, office, gym and hospital are racing ahead. So the industry faces an uncertain future with WiFi dominating mobile working, wire line running a close second and 3/4G only supporting some 5% of the traffic carried. So, can 5G expand to displace WiFi? Not without micro-cells at the end of every broadband line! It would take a ten fold increase (at least) in the number of cell towers for 5G to make a dent in this market - and that isn’t going to happen! When it comes to many aspects of mobility futures there is no doubt that the marketeers and managers will be proclaiming: “there is no proven market’, but they said that about the lightbulb, radio, TV, telephone and every other technology advance and change! What is clear; there is a latent demand for more bandwidth and a proven case for greater utility and ubiquity, and 5G looks set to provide such a facility, but it cannot do so without new spectrum and more cell sites. Raiding existing 3 and 4G spectrum allocations, or allocating new ‘narrow bands’ (20 - 50 MHz) in the UHF band will not work, we need GHz and not MHz! Where will we find so much available spectrum? Above 30GHz! However, there is far more we can do to exploit the full potential of spread spectrum in regions of high transmission loss due to the resonances of Oxygen and Water molecules (eg 60 and 90 GHz). It is clear that 5G marks a new era in the evolution of wireless, but only if we dare to think and do different to the past.