If you’ve traveled to or lived in a big city in recent years, chances are you’ve taken an Uber. The app functions so seamlessly. Before you know it, there’s a car at your front door ready to take you wherever. Those that want top ratings even stock the backseat with bottles of water, a phone charger and even candy. The driver may help you with your luggage or be just-the-right-amount-of-chatty. You enjoyed your ride, but at the end of the day, it was just a ride to the airport and though it was better than having your Aunt Susie drop you off, or hauling your crap to the subway, you give her 4 stars. Like the average person, 5 stars are generally reserved for amazing life experiences. A ride to the airport may not have been that experience.

But guess what? That 4-star rating may have cost your driver his or her job, according to Buzzfeed. To Uber, 4 stars means not perfect, not great, wouldn’t like to have this driver again. It’s just another example how star rating are oft-misunderstood. Recently, Netflix switched its star rating functionality to simply “thumbs up” or “thumbs down.” This seems less telling of a title and the decision was met with some resistance on social media. However, there thumbs up and thumbs downs are not as misunderstood, though they are definitely more limited.

“There has to be a better way!” we collectively scream into the air. And there is. Meet Morphii. Our morphiis are morphing emojis, which allow people to react more scientifically–without even knowing it. Learn more about how it works or play around with our labs.