The Second Apprenticeship: Why Long Careers Require Us to Become Beginners Again
For most of our working lives, progress is associated with knowing more. We accumulate expertise, become more confident in our judgment, deepen our networks and eventually become the person others turn to for answers. Professional identity is built around this progression from novice to expert. Yet longer working lives introduce a problem that the traditional career model was never designed to solve: what happens when an experienced professional needs to become a beginner again? A new technology changes the field. An industry contracts. A role disappears. Someone decides, after twenty or thirty years, to change direction entirely. Experience still matters, but it is no longer sufficient. Reinvention requires learning again, often after years of being rewarded for already knowing.
The difficulty is that most career systems are designed for exactly the opposite. Learning is concentrated at the beginning. Early-career professionals are expected to ask questions, rotate through unfamiliar roles, seek mentors, experiment and make mistakes. By midcareer, the emphasis shifts towards performance and delivery. The individual is increasingly valued for accumulated expertise, while the structures that once supported exploration begin to fall away. OECD data reflects this clearly. Across member countries, participation in adult learning declines with age. In 2023, only around a third of adults aged 60 to 65 participated in adult learning, compared with more than half of those aged 25 to 44. Learning by doing also falls with age. This made sense in a career model built around a long first climb followed by retirement. It makes far less sense in a world where a 45-year-old may have another twenty or thirty years of work ahead. If careers are becoming longer and more nonlinear, learning cannot remain front-loaded into the first decade.
That pattern points to something deeper than access to training. Management scholar James G. March famously distinguished between exploration, the search for new possibilities, and exploitation, the refinement and use of what is already known. Organisations naturally become better at exploitation because its benefits are more immediate and visible. The same tension can exist within individual careers. Expertise is valuable because it allows us to act faster, recognise patterns and avoid mistakes. But the more successful we become at using what we already know, the easier it is to stop exploring what we do not. Over time, professional competence can become its own constraint. The skills that built one chapter of a career may make it harder to step into another if identity, status and reward have all become attached to being the expert.
This is why becoming a beginner again is not simply a technical challenge. It is a psychological one. A senior executive learning AI from a younger colleague, a lawyer entering sustainability, a corporate leader moving into education or an experienced specialist becoming an entrepreneur all face the same uncomfortable transition: they have to tolerate not knowing. They may need to ask basic questions, take instruction from people with fewer years of experience, test ideas publicly and accept a temporary loss of fluency. Research on reverse mentoring shows the value of deliberately reversing traditional flows of expertise, with younger employees sharing technological or emerging knowledge with more senior colleagues while knowledge moves in both directions. Research on age-inclusive HR practices also suggests that older employees are more likely to seek knowledge from younger colleagues when organisations create conditions that support development, positive cross-generational contact and a meaningful sense of future opportunity. The barrier, in other words, is not simply whether knowledge exists. It is whether the environment makes it safe and worthwhile to seek it.
We think this points to the need for what might be called a second apprenticeship. Not a return to the beginning, and not an erasure of everything accumulated so far. A second apprenticeship begins from experience but creates permission to become a learner again. For individuals, it may mean deliberately entering rooms where they are not the expert, seeking mentors who are younger or differently skilled, experimenting before making a full transition and recognising that temporary incompetence is not evidence of decline. For organisations, it means creating serious learning structures beyond early career: midcareer rotations, reverse mentoring, cross-functional assignments, reskilling pathways and time to explore without signalling that someone has fallen behind. If longer productive lives are becoming the norm, continued learning cannot remain an optional benefit offered most generously to those at the beginning.
This becomes even more important as AI changes the content of professional work. The longevity conversation rightly emphasises the enduring value of judgment, pattern recognition and contextual understanding. But experience alone is not enough. Those capabilities still need to be applied through new tools, new markets and new forms of work. The real advantage of experience may therefore lie not in preserving old expertise intact, but in combining it with repeated periods of renewal. Someone who has spent decades building judgment may become more valuable, not less, when they can pair that judgment with the willingness to learn something unfamiliar.
A 50-year career cannot be one continuous ascent from novice to expert. It will contain several cycles of mastery, disruption and relearning. That changes how we should think about professional strength. The longest and most resilient careers may not belong to the people who preserve expertise most carefully, but to those who can repeatedly loosen their grip on it without losing the value of what came before.
Perhaps the defining capability of a long working life is not expertise itself.
It is the ability to become a beginner more than once.
References
OECD, Education Policy Outlook 2025: Mid-Career.
OECD, OECD Employment Outlook 2025: Staying in the Game: Skills and Jobs of Older Workers in a Changing Labour Market.
James G. March, “Exploration and Exploitation in Organizational Learning,” Organization Science (1991).
Wendy Marcinkus Murphy, “Reverse Mentoring at Work: Fostering Cross-Generational Learning and Developing Millennial Leaders,” Human Resource Management (2012).
Ulrike Fasbender and Fabiola H. Gerpott, “Why Do or Don’t Older Employees Seek Knowledge From Younger Colleagues?”, Applied Psychology (2022).
