Smart Cities and the Internet of Things (IoT) are up there near the top of the hype cycle. You don't have to be in the technology sector to know that, anyone who reads fairly widely can't miss it. But I still come across people in the energy and utility sectors, construction and engineering, and even some apparently cutting edge renewable and clean tech companies, who don't really grasp what all the fuss is about.
This is a mistake. Whatever sector you are in, and particularly those of us concerned about sustainability, you need to get this.