Reconceptualizing Krashen's comprehensible input hypothesis for lifelong and skills-oriented language learning

211 Psychology Research on Education and Social Sciences, 6(4), 211-219, Dec. 2025 e-ISSN: 2717-7602 dergipark.org.tr/press Genc Bilge Publishing Ltd. (Young Wise) © 2025 gencbilgeyayincilik.com Research Article Reconceptualizing Krashen’s comprehensible input hypothesis for lifelong and skills-oriented language learning Mohammed Bouknify1* and Meryem Mrani2 Faculty of Letters, Languages and Arts, Kenitra – Ibn Tofail University, Morocco. Article Info Abstract Received: 18 August 2025 Accepted: 24 December 2025 Online: 30 December 2025 Keywords: Acquisition–learning Distinction digital literacy Krashen comprehensible input Lifelong learning Second language acquisition Skills-based education Transferable skills 2717-7602/ © 2025 by PRESS. Published by Genc Bilge (Young Wise) Pub. Ltd. This is an open access article under CC BY-NC-ND license This conceptual paper revisits Krashen’s acquisition–learning distinction and comprehensible input hypothesis within a lifelong, skills-oriented framework of language education. While Krashen’s model has strongly influenced classroom-based second language acquisition (SLA), its relevance to continuous language development beyond formal instruction remains underexamined. Drawing on research in SLA, lifelong learning, and digital education, the paper reconceptualizes acquisition as an enduring, implicit capacity enabling flexible language use across contexts, and learning as explicit scaffolding that supports accuracy and metacognitive awareness. Comprehensible input is reframed as a key driver of sustained language growth in multimodal, professional, and digitally mediated environments, facilitating the transfer of linguistic and cognitive skills across domains. The paper proposes a recursive model of lifelong language development—exposure, acquisition, transfer, and ongoing development—and discusses its implications for SLA theory, pedagogy, and language education policy. This reconceptualization extends Krashen’s framework to align with contemporary priorities in skills-based and lifelong learning. To cite this article Bouknify, and Mrani, M. (2025). Reconceptualizing Krashen’s Comprehensible Input Hypothesis for Lifelong and Skills-Oriented Language Learning. Psychology Research on Education and Social Sciences, 6(4), 211-219. DOI: https://doi.org/10.5281/zenodo.18052906 Introduction Over the past thirty years, education worldwide has shifted from knowledge-based models—centered on the accumulation and reproduction of information—toward skills-based approaches that emphasize adaptability, collaboration, problem-solving, creativity, and digital literacy. In much of the twentieth century, knowledge-driven education cast learners as passive recipients of content, valuing memorization, standardized testing, and accurate recall. While this ensured the transmission of information, it often failed to foster the higher-order thinking and transferable skills needed to thrive in today’s interconnected and rapidly changing societies (OECD, 2021). By contrast, skills-based education treats knowledge not as an end in itself but as a foundation for applying competencies in authentic, real-world contexts. It empowers learners to critically evaluate information, solve problems collectively, adapt to uncertainty, and use digital tools to engage in global networks of communication and knowledge 1 Corresponding Author: Asst. Prof., Faculty of Letters, Languages and Arts, Kenitra – Ibn Tofail University, Morocco. Email: [email protected]: 0000-0001-5756-0891 2 Moulay Smail University, Faculty of Arts & Humanities, Meknes, Morocco. Email: [email protected] Bouknify & Mrani Psychology Research on Education and Social Sciences 6(4) (2025) 211-219 212 (European Commission, 2019). Rather than privileging content mastery, it highlights learner agency, active participation, and the transfer of knowledge across disciplines, cultures, and professional settings. This paradigm shift is rooted in the philosophy of lifelong learning, which conceives of education as a continuous, dynamic process spanning the entire lifespan. Lifelong learning recognizes that rapid social, economic, and technological change requires continuous acquisition, renewal, and transfer of skills. Unlike traditional views of education as ending with formal schooling, it encompasses formal, non-formal, and informal pathways, acknowledging diverse learning contexts—from academic institutions and workplace training to self-directed study and community-based exchange. Its central goal is to cultivate adaptive, autonomous learners who can navigate shifting landscapes with resilience and creativity. Krashen’s Framework in Context Within today’s shifting educational landscape, Stephen Krashen’s acquisition–learning distinction and his comprehensible input hypothesis (Krashen, 1982, 1985) remain a valuable lens through which to reconsider language learning in light of skills-based and lifelong learning agendas. Krashen drew a clear line between two modes of language development: acquisition and learning. Acquisition, in his model, is an implicit, largely subconscious process that occurs when learners encounter meaningful, context-rich input slightly beyond their current competence (i+1). Through this naturalistic exposure, learners gradually build an intuitive and automatic command of the target language. By contrast, learning involves the explicit study of linguistic rules and forms. While this conscious knowledge can strengthen metalinguistic awareness, Krashen argued that it plays a comparatively limited role in supporting long-term communicative fluency. Placed within the broader philosophy of lifelong education, this distinction aligns closely with the goals of skillsbased learning. Acquisition mirrors the qualities such paradigms value most: authentic engagement with real-world input, the growth of learner autonomy, and the development of sustainable competence that transfers across contexts and life stages. Learning, though still important, may serve primarily as scaffolding—providing structure and opportunities for reflection—while acquisition drives the deeper, adaptable mastery that lifelong learning seeks to foster. In this way, Krashen’s framework can be reinterpreted as a foundation for lifelong language learning strategies, where both processes complement one another in supporting continuous skill development. Recent scholarship highlights the continued relevance of Krashen’s insights, particularly in digital and multimedia environments that make comprehensible input more accessible than ever. Studies by Lee and Huang (2023), Jelinkova and Smith (2024), and Chen and Wang (2025) show how tools such as streaming platforms, interactive applications, and AI-based learning technologies offer learners abundant, varied, and personalized input. These environments not only simulate naturalistic exposure but also allow learners to control pacing, select materials aligned with their interests, and engage in iterative practice—factors that reinforce acquisition processes. Taken together, this body of work suggests that Krashen’s theory, far from being a static contribution of the 1980s, continues to provide a critical framework for rethinking language learning in ways that respond to the demands of skills-based and lifelong learning paradigms. Problem and Gap Despite its ongoing relevance, applications of Krashen’s theory remain mostly confined to classroom or academic contexts, with relatively little exploration of its potential in adult, professional, or lifelong learning environments (Lightbown & Spada, 2021; Ellis, 2008). Much of the empirical research has focused on formal second language acquisition (SLA) settings—school curricula, university programs, and intensive courses—where input is carefully structured and outcomes are assessed through academic performance measures. While such studies have been invaluable in confirming the role of comprehensible input in classroom learning, they do not adequately address how acquisition operates in real-world contexts where learning is woven into work, migration, digital interaction, or community engagement. Bouknify & Mrani Psychology Research on Education and Social Sciences 6(4) (2025) 211-219 213 Meanwhile, global education frameworks have shifted decisively toward skills-based orientations. Policy initiatives such as the OECD Skills Outlook (2021) and the European Union’s Key Competences for Lifelong Learning (2018) emphasize multilingualism, digital literacy, adaptability, intercultural communication, and problem-solving as core competencies for the twenty-first century. These documents explicitly call for language learning to be integrated into lifelong education strategies, treating linguistic competence as a transferable skill that supports employability, social participation, and personal growth. Yet, SLA research has not fully engaged with Krashen’s constructs in relation to these broader competencies, leaving a gap between theory and policy. This gap prevents SLA theory from realizing its full potential to inform lifelong learning agendas. If left unaddressed, SLA risks being seen as narrowly pedagogical rather than strategically aligned with the global shift toward skills-based education. A systematic reappraisal of Krashen’s work within lifelong learning frameworks could therefore benefit both fields: revitalizing SLA theory while offering policymakers and educators insights into how input-driven acquisition processes can nurture sustainable, adaptable competencies across the lifespan. Purpose and Research Questions The purpose of this study is to critically reassess Krashen’s influential theory of second language acquisition (SLA) through the lens of lifelong learning. Although his constructs of acquisition, learning, and comprehensible input have shaped classroom-based instruction for decades, their relevance to skills-oriented education in the twenty-first century requires renewed examination. Today, language learning increasingly intersects with professional, intercultural, and digital competencies, placing emphasis on adaptability, continuous learning, and the ability to navigate complex, realworld contexts. This study therefore investigates how Krashen’s principles can be reinterpreted to support lifelong language learning and the cultivation of twenty-first-century skills. More specifically, it examines how comprehensible input can be operationalized beyond traditional classrooms to enhance professional development, intercultural communication, and digital literacy. It also revisits the acquisition–learning distinction, considering its implications for designing education that extends into informal, workplace, and virtual environments. By bridging classical SLA theory with contemporary lifelong learning frameworks, this research aims to contribute both theoretical insight and practical guidance for educators, curriculum developers, and policymakers engaged in skills-based education. Ø How can comprehensible input be leveraged to support lifelong language learning across professional, intercultural, and digital domains? Ø What implications does the acquisition–learning distinction hold for designing skills-based education that extends beyond formal classroom settings? Literature Review Lifelong Learning and Skills-Based Education International organizations such as UNESCO, the OECD, and the European Commission define lifelong learning as a continuous, flexible, and adaptive process spanning formal, non-formal, and informal contexts (UNESCO Institute for Lifelong Learning, n.d.; OECD, 2000). These frameworks converge on the view that learning is no longer confined to early schooling but must extend across the lifespan in order to remain relevant. Policy agendas further emphasize employability, adaptability, and social participation, highlighting competencies such as effective communication, digital literacy, and self-directed learning (Council of the EU, 2018; European Commission, 2020). Together, these perspectives stress the importance of moving beyond time-bound classroom instruction toward models that foster learner autonomy and prepare individuals for evolving professional, intercultural, and technological landscapes. Within this context, skills-based education shifts the focus from the accumulation of content knowledge to the development of transferable competencies that enable continuous personal and professional growth. Bouknify & Mrani Psychology Research on Education and Social Sciences 6(4) (2025) 211-219 214 Krashen’s Input Hypothesis and the Acquisition–Learning Distinction Krashen’s (1982, 1985) theoretical framework places comprehensible input at the heart of acquisition while distinguishing it from explicit, conscious learning. Acquisition, in this sense, is a naturalistic and subconscious process that drives fluent, functional language use, whereas learning contributes more to accuracy, reflection, and metalinguistic awareness. This distinction has been both influential and contested. Long (1996) emphasized that interaction mediates input and facilitates acquisition, while Swain (2000) argued that output plays a complementary role by consolidating linguistic knowledge. VanPatten (1993) added a cognitive perspective, highlighting how learners process and prioritize input. Despite these refinements, the principle that naturalistic acquisition underpins effective language use remains a cornerstone of SLA research and communicative pedagogy (Lightbown & Spada, 2021; Ellis, 2008). Comprehensible Input in Contemporary Learning Contexts Digital and multimedia environments have expanded access to input-rich opportunities, reshaping how learners encounter and process language. For instance, captioned videos, multimodal interactive texts, and AI-driven adaptive platforms illustrate how Krashen’s i+1 principle can be applied in practice (Peters & Muñoz, 2020; Zhou & Li, 2023; Wei et al., 2023). These tools do more than provide exposure: they encourage autonomy, metacognitive awareness, and self-regulation, aligning closely with the competencies prioritized in lifelong learning. Learners can now engage with authentic language use across diverse contexts—professional communication, intercultural exchange, and online interaction—making input both relevant and transferable. This resonates strongly with frameworks that call for bridging the gap between classroom instruction and continuous, real-world language engagement (Benson, 2013; Oxford, 2017). Toward Integration of SLA and Lifelong Learning Despite these synergies, integration between SLA and lifelong learning remains underdeveloped. SLA research has historically concentrated on formal classroom contexts, while lifelong learning frameworks prioritize adaptability, transferable skills, and ongoing personal development. Few studies explicitly connect Krashen’s acquisition–learning distinction or his comprehensible input hypothesis to lifelong trajectories of language education. This gap signals the need for a critical reappraisal of Krashen’s constructs, considering their potential to inform skills-based pedagogies that extend beyond traditional classrooms into professional, intercultural, and digital domains. Theoretical Framework Positioning Krashen in Lifelong Learning Krashen’s constructs, though originally developed with formal SLA in mind, can be reconceptualized as mechanisms that operate across the lifespan. Within this perspective, acquisition functions as an enduring, implicit process of learning through meaningful exposure to comprehensible input, while learning provides structured scaffolding, offering conscious, metacognitive strategies that refine and accelerate skill development. This reframing brings SLA theory into alignment with contemporary lifelong learning paradigms, which emphasize adaptability, autonomy, and continuous skill growth (UNESCO, n.d.; OECD, 2021). Such a perspective highlights how language learning is not limited to the classroom but extends into professional, intercultural, and digital spheres. In these contexts, acquisition enables spontaneous, context-sensitive communication, while learning supports explicit strategies for refinement, correction, and reflection. By embedding Krashen’s insights into lifelong learning frameworks, educators and policymakers can design curricula and professional development programs that promote sustained language growth. In turn, learners are better equipped to remain adaptable in rapidly evolving social, professional, and technological environments (Benson, 2013; Lightbown & Spada, 2021). Bouknify & Mrani Psychology Research on Education and Social Sciences 6(4) (2025) 211-219 215 Skills-Based Competencies and Comprehensible Input Comprehensible input, as conceptualized by Krashen, has traditionally been understood as the primary driver of naturalistic language acquisition. However, in the context of skills-based, lifelong education, its role can be extended beyond linguistic competence to the cultivation of twenty-first-century skills such as critical thinking, problemsolving, digital literacy, intercultural communication, and self-regulation. Engagement with authentic, multimodal digital resources—such as interactive video platforms, AI-mediated feedback systems, and immersive simulations— provides rich input that simultaneously develops language and transferable professional and cognitive competencies (Lai, 2019; Zhou & Li, 2023). Moreover, balancing acquisition with explicit learning enhances metacognitive awareness, enabling learners to monitor their own progress, adapt strategies, and transfer skills across contexts. For example, while acquisition may allow a learner to intuitively grasp idiomatic expressions in intercultural communication, explicit learning equips them with the strategies to analyze, compare, and apply these expressions appropriately in professional or digital interactions (Oxford, 2017). This dual focus reflects the integration of SLA principles with lifelong learning imperatives, emphasizing the development of adaptive, transferable competencies that remain relevant across evolving personal, professional, and intercultural domains. The Lifelong Learning Cycle in Language Development Building on these insights, a conceptual model of lifelong language learning can be proposed, representing language development as a recursive, adaptive, and dynamic process that extends throughout the learner’s lifespan. The model emphasizes four interrelated stages: Input – Learners engage with authentic, multimodal, and contextually meaningful content that aligns with personal, professional, or intercultural goals. Input is designed to be comprehensible yet challenging, reflecting Krashen’s i+1 principle while promoting engagement, motivation, and sustained attention. Acquisition – Language structures and skills are internalized implicitly through repeated, meaningful exposure. This stage is mediated by learner motivation, autonomy, and engagement, and it serves as the foundation for developing communicative competence that is flexible and contextually appropriate. Skill Transfer – Acquired knowledge and abilities are applied across diverse domains, including professional tasks, intercultural interactions, and digital environments. This stage emphasizes the practical utility of language learning, reinforcing the idea that lifelong learning requires continuous adaptation and contextual application of skills. Continuous Development – Learners engage in ongoing cycles of input, reflection, and strategy adaptation. Through iterative engagement with new materials, technologies, and social contexts, they refine both language competence and associated cognitive, communicative, and digital skills. This stage highlights the recursive nature of lifelong learning, in which acquisition and learning are not discrete endpoints but continuous, evolving processes. This cyclical model bridges the gap between classical SLA theory and contemporary lifelong learning frameworks, demonstrating how Krashen’s constructs can inform pedagogical strategies designed for the twenty-first century. By framing language development as a recursive cycle, the model underscores the potential of comprehensible input to support not only linguistic acquisition but also the cultivation of adaptive, transferable skills necessary for professional, intercultural, and digital competence. Methodology This study adopts a conceptual and theoretical methodology, reappraising Krashen’s acquisition–learning distinction within the broader shift from knowledge-based instruction to skills-oriented lifelong learning. Unlike empirical studies that rely on primary data, this research synthesizes existing literature, policy frameworks, and conceptual models. The aim is to construct a revised framework that situates comprehensible input within the priorities of twenty-first-century education.The methodology follows several interrelated stages designed to ensure rigor and theoretical depth. Bouknify & Mrani Psychology Research on Education and Social Sciences 6(4) (2025) 211-219 216 Literature Review Focus The review draws on scholarly and policy-oriented sources from applied linguistics, educational theory, and international policy discourse. Three strands of scholarship guide this process: Skills-based education and lifelong learning frameworks – Policy documents such as the OECD Skills Outlook 2021 and the European Commission’s Key Competences for Lifelong Learning outline the competencies needed for sustainable personal, professional, and civic development (OECD, 2021; European Commission, 2019). These establish the shift from content-centered to skills-oriented education and ground the study’s focus on transferable competencies. Krashen’s comprehensible input hypothesis and acquisition–learning distinction – Foundational texts (Krashen, 1982, 1985), along with contemporary reassessments (e.g., Jelinkova & Smith, 2024), are analyzed to evaluate their continuing relevance. Special attention is given to how acquisition, as distinct from explicit learning, supports transferable skills central to lifelong learning. Critical perspectives within SLA are also reviewed, highlighting convergences and debates. Contemporary applications of comprehensible input – Empirical studies in modern SLA contexts demonstrate how multimodal and digital environments operationalize Krashen’s principles. Research on captioned videos, online platforms, and AI-mediated tools shows how input fosters vocabulary growth, autonomy, and long-term skill retention (Lee & Huang, 2023; Chen & Wang, 2025). These findings link input-driven acquisition to lifelong learning outcomes. Data Sources and Analytical Strategy The study relies on secondary data, including peer-reviewed journal articles, conceptual frameworks, and international policy documents. A narrative synthesis approach organizes and critically evaluates these sources, identifying convergences and tensions between Krashen’s propositions and contemporary educational priorities. This qualitative integration allows theoretical insights to be connected across disciplinary boundaries, producing a coherent conceptual perspective. Analytical Process The analysis proceeds in two stages: Reevaluating Krashen’s hypotheses – His principles of acquisition, learning, and comprehensible input are revisited in light of critiques, technological developments, and recent findings. This ensures classical SLA constructs are understood within twenty-first-century educational imperatives. Mapping onto lifelong learning frameworks – Reinterpreted principles are aligned with skills-based models, focusing on professional, intercultural, and digital competencies. This mapping identifies points of alignment, adaptation, and extension, allowing Krashen’s constructs to function as dynamic tools for conceptualizing lifelong language learning. Outcome and Contribution The methodology culminates in a conceptual framework that integrates acquisition-driven language learning with the competencies prioritized in lifelong learning agendas. By showing how comprehensible input supports adaptive and transferable skill development, the framework contributes to applied linguistics while informing policy and curriculum design. It demonstrates the potential for Krashen’s principles to transcend classroom boundaries, offering guidance for sustainable, skills-based, lifelong learning practices. Result and Discussion Revisiting Acquisition and Learning Krashen’s distinction between acquisition and learning can be reinterpreted to address the demands of lifelong, skillsoriented education. Acquisition should not be seen only as a classroom phenomenon but as a durable cognitive Bouknify & Mrani Psychology Research on Education and Social Sciences 6(4) (2025) 211-219 217 capacity that drives intuition, adaptability, and context-sensitive communication. In this sense, learners continue to internalize patterns and conventions that they can flexibly apply across professional, intercultural, and digital domains. Learning, by contrast, provides explicit scaffolding that sharpens reflection, accuracy, and formal credentialing. It equips learners with strategies for monitoring, correcting, and analyzing their language use. Acquisition and learning therefore function as a dynamic system: implicit internalization and explicit guidance reinforce one another. This interaction allows learners to respond to evolving needs, combining spontaneous language growth with structured refinement. Such a model aligns SLA theory with lifelong learning priorities by emphasizing adaptability and continuous skill development (Lightbown & Spada, 2021; Benson, 2013). Comprehensible Input as a Lifelong Strategy Comprehensible input plays a central role in sustaining language development across the lifespan. Whereas formal instruction often ends with fixed curricula, input-driven learning adapts to changing contexts and embeds language acquisition in everyday experiences. Digital media, workplace interactions, intercultural exchanges, and online platforms create opportunities for authentic and repeated exposure to meaningful input. These environments not only keep learners engaged but also build autonomy and self-direction. By gradually increasing the complexity of exposure, they bring Krashen’s i+1 principle into practice and encourage long-term growth beyond the classroom (Peters & Muñoz, 2020; Wei et al., 2023). In this way, lifelong learning frameworks can use comprehensible input as both a cognitive mechanism and a strategic approach, integrating language development with professional, social, and digital competencies. Skills-Based Implications Placing input-driven acquisition within a skills-oriented framework clarifies its contribution to several interconnected competencies. First, exposure to authentic, multimodal input fosters critical thinking, as learners must interpret, analyze, and evaluate meaning rather than rely on rote recall. This evaluative practice strengthens reflection not only on language but also on wider social and professional content. Second, input-rich contexts nurture communication skills by enabling learners to negotiate meaning, build pragmatic awareness, and interact effectively across diverse settings. In doing so, they bridge classroom preparation with real-world demands in personal, professional, and intercultural exchanges. Finally, input in digital environments cultivates digital literacy. Navigating online resources, AI-driven learning tools, and collaborative platforms requires learners to access, evaluate, and apply information critically (Oxford, 2017; Lai, 2019). Here, language learning intersects with broader cognitive and technological abilities. Taken together, these competencies show that comprehensible input does more than facilitate acquisition: it equips learners with transferable skills essential for twenty-first-century education. This integration demonstrates the enduring relevance of Krashen’s principles when reinterpreted through the lens of lifelong and skills-based learning. Challenges and Limitations Despite its promise, the application of input-driven lifelong learning faces several systemic and practical constraints. The digital divide limits equitable access to multimodal and technology-enhanced input, potentially reinforcing socioeconomic disparities. Additionally, formal educational systems often overemphasize explicit learning, privileging rulebased instruction and standardized assessment over naturalistic acquisition. Such structural reliance on conscious learning may inhibit opportunities for authentic, self-directed skill development. Finally, the risk of insufficient scaffolding in informal and digital contexts underscores the need for careful instructional design. While acquisition benefits from exposure to meaningful input, learners may require guidance to ensure comprehension, progression, and transfer of skills. Future frameworks must therefore balance naturalistic acquisition with structured learning opportunities, integrating input-driven strategies with targeted scaffolding to support diverse learner profiles across varied professional, intercultural, and digital contexts (Swain, 2000; Long, 1996). Bouknify & Mrani Psychology Research on Education and Social Sciences 6(4) (2025) 211-219 218 Implications The theoretical reappraisal of Krashen’s acquisition–learning distinction within the context of lifelong, skills-based education carries significant implications across policy, practice, and research domains. Policy Implications At the policy level, the findings suggest the importance of integrating input-driven approaches into lifelong learning frameworks. Policymakers should recognize that sustainable language development is not confined to classroom instruction but is embedded in authentic, continuous engagement with comprehensible input. By promoting multilingualism, adaptability, and transferable communication skills, policy initiatives can foster workforce readiness, intercultural competence, and digital literacy. Strategic investment in input-rich learning environments, including online and workplace-based opportunities, can enhance the capacity of citizens to navigate complex social and professional contexts throughout their lives (OECD, 2021; European Commission, 2020). Pedagogical and Practical Implications From a pedagogical perspective, curricula and teacher training programs should prioritize input-rich environments and authentic multimodal exposure. Educators are encouraged to design learning experiences that blend traditional classroom instruction with digital media, workplace simulations, intercultural interactions, and AI-enhanced platforms. This approach supports the integration of acquisition and explicit learning, fostering learner autonomy, metacognitive awareness, and the transferability of skills across personal, professional, and digital domains. Teacher education should equip instructors with strategies to scaffold input effectively, monitor learner progression, and adapt materials to diverse learner needs while maintaining opportunities for naturalistic acquisition (Peters & Muñoz, 2020; Benson, 2013). Research Implications Future research should investigate the longitudinal effects of input-driven acquisition in adult and lifelong learning contexts. Comparative studies can explore how acquisition manifests across different digital platforms, professional settings, and intercultural environments. Research should also examine the interplay between implicit acquisition and explicit skill development, particularly in non-formal and workplace learning contexts. Such empirical investigations will provide evidence for the scalability and effectiveness of input-based strategies in promoting sustained language competence and broader twenty-first-century skills, while addressing current gaps in SLA and lifelong learning scholarship (Lee & Huang, 2023; Chen & Wang, 2025). Conclusion This study reappraises Krashen’s acquisition–learning distinction and input hypothesis within the context of skillsbased, lifelong learning. The analysis shows that acquisition functions as a durable cognitive capacity, enabling intuitive and flexible language use, while learning provides scaffolding that strengthens reflection, accuracy, and the development of transferable skills. Together, these mechanisms form a dynamic system responsive to learners’ evolving needs across personal, professional, and intercultural domains. Comprehensible input emerges as the key bridge between SLA theory and educational practice. Input-rich environments—including digital platforms, workplace interactions, and intercultural exchanges—not only sustain language growth but also foster critical thinking, effective communication, and digital literacy. By embedding learning in authentic experiences, these contexts operationalize Krashen’s i+1 principle while promoting autonomy and lifelong engagement. Language education must therefore move beyond traditional classrooms and adopt pedagogies that integrate SLA theory with lifelong learning and skills-based models. This shift ensures learners become not only linguistically competent but also adaptable, digitally literate, and capable of transferring skills across diverse domains. Bouknify & Mrani Psychology Research on Education and Social Sciences 6(4) (2025) 211-219 219 This framework advances both theoretical and practical understandings of language learning. 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