Some would say it started with the smart thermostat - and homes have been getting smarter ever since. So, what is a smart home? It is simply a home with autonomous features. "You can call any device 'smart' that is capable of doing something autonomously. A smart thermostat automatically adjusts the heat downward if there isn’t any motion in my house. That’s what makes it autonomous." The widespread use of smartphones has significantly increased the adoption of smart home technologies. Total global spending in this market is expected to hit 1.4 trillion in the next few years. Is your house smarter than you are yet?