Alexa Is Conquering the World. Now Amazon's Real Challenge Begins

It's easy to imagine a future in which your virtual personal assistant is everywhere you are. Before long, Alexa, Siri, Google, and others like them will be woven into the fabric of your home, ready to fulfill your every need whim. Forgot to close the garage door? Want to order your post-marathon double cheeseburger and fries before even crossing the finish line? This isn't as outlandish as it might sound.