Until recently, I thought an echo was "a sound or series of sounds caused by the reflection of sound waves from a surface back to the listener" (as defined by my trusty resource Google) - but I found out there is an amazing device called an Amazon Echo
My friend Kristina explained what this puppy can do, but I felt I had to do a little more research on my own. So of course, I headed over to Amazon to check it out. In short, it is an amazing device which made me think we are beginning to live in a Star Trek-like world.
While reading through the reviews, I stumbled upon an entertaining entry from a sci-fi author & now I'm off to fire up my Kindle to download his e-book... Live Long & Prosper