Iraqi Police learn to shoot a 9mm pistol at the Jordan International Police Training Center September 3, 2005 in Amman, Jordan. About 300 instructors, mostly former and current police officers, from 17 different countries are training Iraqi Police in marksmanship, patrol tactics, self defense, community policing, and other police tactics. Approximately 1,500 policemen a month graduate from the school before being assigned to police stations throughout Iraq. Scott Olson/Getty Images Apple is using emojis to take a stand against gun violence — but the decision could have serious adverse consequences.

The Cupertino, California, technology giant has decided to change the design of its handgun emoji from a revolver to that of a toy water pistol.

It's not the first time Apple has viewed emojis as a political medium: It previously blocked the introduction of a rifle emoji.

But this time, it's very different.

Apple, by changing an existing emoji's design so radically, could cause widespread confusion across platforms.

And more worryingly, it will retroactively change the meaning of countless historic messages and texts — setting a dangerous precedent with unpredictable results.

Apple's new water-gun image alongside the current revolver emoji. Apple

Emojis aren't just another kind of letter

Apple doesn't create emojis — though its versions of them are most widely recognised. Instead, they are set by a standards-setting body called the Unicode Consortium. Once new emojis are approved for new versions of Unicode, companies like Apple, Google, and Microsoft implement them into their platforms.

Ancient Egyptian hieroglyphics. Vavva_92 / Flickr, CC While emojis have clear names, it is up to the companies to decide what they look like, hence their looks can differ from platform to platform. It's basically the same as a font: An "R" is still an "R," whether it is rendered in Helvetica or Times New Roman.

But there's a very significant difference between emojis and traditional letters: Emojis are hieroglyphics. A font can't change your interpretation of a letter (or word), but the particular representation of an emoji is crucial in determining how it is perceived. Studies have found wild variance in the interpretation of and emotional response to certain emojis, based on how the platform chose to show them.

And compounding the matter is the fact that many emojis have taken on deeper symbolic meaning and cultural significance, which directly stems from the image given to them. The information-desk girl signifies sass or sarcasm. Women with bunny ears are best friends. The eggplant/aubergine is a penis.

An example in the variation in interpreted meaning of an emoji across platforms. GroupLens

Apple is tampering with the past

If you change an emoji's image, you change its meaning. And any change made to an emoji doesn't just affect new emojis used going forward. It changes how the user sees emojis that have been used in the past.

Apple's change, while well-intentioned, will unilaterally modify the meaning of countless historic messages, texts, and uses of emojis — transforming them in unpredictable ways.

It's a small consolation that Apple isn't taking the nuclear option and removing the handgun emoji altogether, as some anti-gun activists have called for.

Just imagine if Apple decided to remove the word "gun" from its platform, rendering past sentences that used it meaningless. It would be terrifying abuse of power — and it's the exact same principle.

Apple CEO Tim Cook has been an outspoken defender of civil rights. REUTERS/Kevin Lamarque There's nothing wrong with companies taking a political stance on issues. Much of Apple's advocacy, in areas like civil rights and environment causes, has been admirable. But it's questionable what this change will even achieve.

The gun emoji doesn't glamourise gun crime. Altering it won't solve gun violence. And there's a reasonable argument to be made that emojis — like "conventional" language — should reflect reality, warts and all.

"The bomb, syringe, and knife all remain in non-toy form, so I'm not sure I see the benefit of changing just this single image," Jeremy Burge, the founder of the emoji website Emojipedia says. "In particular, making dramatic changes to an emoji appearance is terrible for backward-compatibility."

Apple did not respond to a request for comment.

The change will only produce confusion

Having emojis represented radically differently on different platforms just spreads confusion and miscommunication. Warner Bros. Apple's change will stymie our attempts to understand historic messages — but it will also create confusion on a day-to-day basis.

Almost all platforms render the handgun emoji as a revolver. Only Microsoft doesn't, going for a toy-esque ray gun — but it has just updated it to a "real" gun. (Microsoft's change is also arguably problematic, but its emojis are far less widely used, and the change brings it in-line with consensus.)

As such, there is potential for serious miscommunication across different platforms. Apple's image looks light-hearted, fun, jovial — while the pistol rendered by Google et al is more serious and arguably threatening.

In March a Frenchman was actually jailed for sending his ex-girlfriend the pistol emoji, in what was interpreted as a threat. What if a joke sent from an Apple user to a Google user is misconstrued because of differences in rendering? Or if a genuine threat sent by a Google user to an Apple user goes unreported because it is taken as a joke?

There's no real precedent for any of this

We're in uncharted territory here. Should emoji images, once settled on, never be updated? Many are slightly tweaked on a yearly basis, with Google's going through multiple iterations. Or should they only be updated enough to keep them looking modern? Bearing in mind that even a subtle change can affect how it is emotionally perceived.

Words, their meanings, and their connotations, can — and do — change over time. But it's a gradual, unconscious process. Emojis, with their hieroglyphic nature and changes decided by committee, are something else entirely.

One thing is clear, though. Apple is tampering with the meaning of hundreds of millions of old messages, documents, and private communications to score a political point — and that might not be a precedent we want to set.