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Banner image: A woman successfully wins a game of Wordle. (Credit: Glenn Asakawa)听

Created by Josh Wardle, the game Wordle went public in October 2021 and has since skyrocketed in popularity and . It鈥檚 surprisingly simple: Each day, players have six attempts to guess a randomly generated five-letter word.听

This free online word puzzle became so well-known over the winter that it was recently purchased by The New York Times Company, setting off a flurry of debate. Would the game become more difficult, or would you have to pay to play?听

Alexis Palmer, assistant professor of linguistics at CU 葫芦娃视频, is a self-described word game aficionado. She is also a computational linguist, a subfield of artificial intelligence that sits at the intersection of linguistics and computer science. CU 葫芦娃视频 Today spoke with Palmer to learn more about the Wordle phenomenon.

What鈥檚 so special about five letters?

Five-letter words are interesting. They're usually just one syllable in English, and usually they start with consonants and their vowels land somewhere in the middle. Another common structure for five-letter words is alternating consonants and vowels. These are constraints that we know innately and we use that knowledge whether we realize it or not. It鈥檚 interesting as a window into linguistics, because as you're solving this, you're like, well, I know what letters can go there. How do I know that?听

So, is Wordle like playing a game with our own brains?

Wordle appeals to our intuitive knowledge of what words can look like in English. Not only what words are in our vocabulary, but what words are possible. There's a huge amount of knowledge about valid word structures and patterns of sound that we have on a subconscious level as speakers of our native language. Even if we couldn't write down the rules, we know you can't start a word with the sequence 鈥渘g鈥� in English, that's just never going to happen. This is a lot of what linguistics is: trying to codify those rules and figure out what our knowledge as a native speaker is.听

Is there a strategy to winning at Wordle?听

There are a lot of strategies that are just based on the frequency of letters in English. This also shows up in Wheel of Fortune where the game starts contestants off with a certain set of letters鈥擱, S, T, L, N and E鈥攂ecause those are the most frequently occurring letters in English. A lot of the words that have been proposed as good starting words are some combination of those.

With Wordle, I actually first started with a strategy of trying to figure out what my vowels are. I use a starting word, 鈥淟OUIE.鈥� According to something I read this morning, that's a bad strategy, but I also haven't lost yet, either. Of course, from a computational perspective, you could also just write an algorithm to solve Wordle puzzles, but where鈥檚 the fun in that?

How does Wordle work?

It鈥檚 pretty simple on the back-end. There are two different word lists that are involved. One is the list of the potential words of the day. That list is a little over 2,000 words. They鈥檙e randomized and they move through a pre-specified order. The second word list is the list of valid guesses, and that's over 10,000 different words. Even Josh Wardle, the guy who created this version of the game, doesn't know what the next word is going to be, so that he can play it.听

Did The New York Times make Wordle harder?听

The New York Times made a couple of changes, but only removing words, not adding any words. They removed some words for appropriateness, and then they also removed a few words they thought might be obscure or reflect British instead of American spelling. So, no. They did not make it harder.

Could you build your own version of Wordle?

There's a Canadian linguist and software developer named Aidan Pine, who put up an that lets you create a new Wordle for any language. He's got the repository of code on GitHub, and also a how to do this. It's written for people who might not have any software development background. Anyone who's a speaker of any language can build their own Wordle.听

Could open-source Wordle offshoots benefit lesser-known languages?听

Part of my research is looking at how we can use computational methods to support documentation of endangered languages, to support the work of revitalization of these languages. And these kinds of games can be a really great tool for engagement with the language, both for speakers and for people who want to learn the language. Pine has built Wordles for two different First Nations languages spoken in British Columbia. Some of the speakers of that language have talked about how it's really helped them鈥� to spend at least 15 minutes a day working on learning her ancestral language.听

Will Wordle stick around?听

I wouldn't be surprised, honestly, to see Wordle have the kind of longevity that crossword puzzles do. It鈥檚 such a satisfying activity, with the additional fact that it relies on our own internal knowledge. It doesn't have anything to do with our level of education or what books we've read or things like that. It's really all about our internal knowledge of language and things that we inherently know, whether we realize that we know them or not.听

How else does computational linguistics impact our lives?

Computational linguistics/natural language processing is an inherently interdisciplinary field, and it informs a hugely important set of technologies these days. When I started in this field maybe 20 years ago, it felt like it was one of the really important frontiers, and now it's become part of our daily life. Language technology, for example, ranges from things like spell checking and predictive text and games like Wordle, to things like Siri, Alexa and Google Translate.听

What鈥檚 the job market for computational linguists? 听

All of the big tech companies like Google, Amazon and Facebook are hiring people who know these kinds of technologies. But they're also hiring linguists, because linguists have really great analytical skills to analyze what language is doing, figure out what the patterns are, and figure out how we could improve these sorts of systems.听