As anyone who’s in the security industry is already acutely aware, there are cameras and display screens everywhere. A lot of that video technology is used to entertain, while a good bit is used for surveillance. Eventually, though, all of those cameras and screens — especially when coupled with commands from a human voice — will be serving us in ways we can barely imagine.

Before we get to predicting the future when it comes to video tech, though, let’s start with where we are now: in the midst of a TV shift from what we call “hi-definition” to “4K” — and on the verge of a smart home revolution driven by very small cameras.