One of the possible benefits of AI is that translation between languages will be simultaneous and seamless. In a not-too-distant future, we will be able to speak in our mother tongue; what we say will be translated into another’s mother tongue, in their ear let’s say, and then they will be able to respond without ever having heard our mother tongue before. This, of course, assumes that all languages will be known or known enough that this sort of communication is possible. There’s much about this idea that I really like – walls coming down, languages being preserved, access to information being given more freely than ever before, travel becoming more feasible to folks who are otherwise uneasy about being out of their comfort zone and so stay home. And yet, this also feels like a loss. Can the cultures of the world be boiled down to algorithmic tokens that can be translated with nuance? Will we stop listening to the incredible body language of our neighbors, that language that shares as much about what they are saying as the words and which we humans have been interpreting for our whole existence? 

This is a very small set of the questions that we need to be asking ourselves as GenAI becomes prolific and the need for language learning seems less important. The advantages of language learning go far beyond translation, shaping the brain, fostering deeper human connections, and preserving the rich cultural heritage embedded in linguistic diversity. While AI-powered translation may bridge language barriers, it cannot replace the profound cognitive and social benefits that come with mastering a new language or retaining more than one. 

Olga Tokarczuk writes in Flights: 

There are countries out there where people speak English. But not like us—we have our own languages hidden in our carry-on luggage, in our cosmetics bags, only ever using English when we travel, and then only in foreign countries, to foreign people. It’s hard to imagine, but English is their real language! Oftentimes their only language. They don’t have anything to fall back on or to turn to in moments of doubt. 

How lost they must feel in the world, where all instructions, all the lyrics of all the stupidest possible songs, all the menus, all the excruciating pamphlets and brochures—even the buttons in the elevator!—are in their private language. They may be understood by anyone at any moment, whenever they open their mouths. They must have to write things down in special codes. Wherever they are, people have unlimited access to them—they are accessible to everyone and everything! 

Tokarczuk’s words remind us that language is more than a means of communication—it is a deep-rooted part of our identity, our secret refuge, and our bridge to the world. The power of multilingualism is not just in cognitive benefits but in its ability to grant people the freedom to express themselves in multiple spheres while maintaining a sense of home. Language is both a shield and a key, a way to belong and a way to explore. 

The benefits of becoming multi-lingual include: 

1. Enhanced Cognitive Abilities 

Learning and managing multiple languages improves cognitive flexibility and executive function. According to Bialystok (2015), bilingual individuals develop superior attentional control, which allows them to focus better and manage competing tasks more efficiently. This advantage extends to both children and adults, as switching between languages strengthens the brain’s ability to process and prioritize information. 

Moreover, research by Bartolotti and Marian (2012) suggests that bilingualism enhances problem-solving skills and cognitive control. These improvements stem from the brain’s ability to juggle multiple language systems, fostering mental agility that extends to various aspects of life. 

2. Structural and Functional Brain Changes 

Bilingualism literally reshapes the brain. Costa and Sebastián-Gallés (2014) highlight that speaking multiple languages strengthens neural pathways, leading to increased brain density in regions associated with memory, attention, and language processing. Similarly, Pliatsikas et al. (2020) demonstrate that bilingual individuals develop enhanced white matter integrity, which facilitates faster and more efficient neural communication. 

This neural plasticity extends across the lifespan, reinforcing cognitive resilience and adaptability. The ability to switch between languages enhances the prefrontal cortex’s function, improving multitasking and decision-making skills. 

3. Delaying Neurocognitive Decline 

The benefits of bilingualism extend into old age, offering protection against neurodegenerative diseases. Studies by Craik, Bialystok, and Freedman (2010) and Gallo et al. (2022) indicate that bilingual individuals experience a delayed onset of Alzheimer’s disease and other forms of dementia. The constant mental exercise involved in language switching strengthens the brain’s cognitive reserve, delaying the impact of aging on memory and executive function. 

4. Improved Communication and Social Skills 

Beyond cognitive benefits, multilingualism fosters better interpersonal skills. According to Ingmire (2015), children exposed to multiple languages develop superior communication skills and an enhanced ability to understand different perspectives. These social advantages stem from their experience in navigating multiple linguistic and cultural contexts, leading to greater empathy and adaptability. 

Additionally, bilinguals are more effective communicators in high-stakes situations. Keysar, Hayakawa, and An (2012) found that people who think in a foreign language make more rational and less emotionally biased decisions, a phenomenon known as the Foreign-Language Effect. This cognitive distancing allows for clearer, more objective reasoning. 

5. Boosted Creativity and Problem-Solving Skills 

Bilingualism enhances creativity by promoting cognitive inhibition and flexibility. Xia, An, and Guo (2022) found that bilingual individuals excel in creative problem-solving due to their ability to suppress irrelevant information and approach tasks from multiple perspectives. This ability to think outside the box is highly beneficial in academic and professional settings, where innovation is a valued skill. 

The choice between AI-powered translation and traditional language learning isn’t binary. Rather than thinking of  AI as a hack for language learning, we can embrace it as a complementary, not replacement tool. The true value of learning multiple languages extends far beyond communication. It shapes our cognitive architecture, enriches our cultural understanding, and preserves the complexity of human expression. While AI may help us bridge immediate communication gaps, the benefits of language learning remind us that becoming multilingual is an investment in our minds, our identities, and our shared human experience.