Thinking (2)

Research on cognitive maintenance consistently shows that engagement matters. But not just any engagement. What seems to protect cognitive performance over time is encountering unfamiliar territory: so, problems you haven't solved before, contexts you don't control, conversations that challenge rather than confirm.

During a long career, particularly in professional services, unfamiliarity is built in. New clients bring new problems, market shifts force adaptation, regulatory changes require learning. You might work in the same field for decades, but the field itself keeps moving. And so, although your expertise deepens, the work stays challenging.

In a recent post I looked at what's lost when the cognitive environment - the rhythms and conditions that so often shape how we think and work - disappears. But it's not just the scaffolding that goes. You may also lose the familiar patterns that sustained engagement - deadlines, clients, problems requiring solving. These provided cognitive challenge whether you wanted it or not.

So, if you are stepping away from institutional life, where does unfamiliarity now come from?

It may be the case that you need less than you expected. The relief of not having to engage with novelty outweighs what's lost. But others may find themselves restless, missing not the institution but the mental stretch it provided.

What I've noticed through Milestones is that the people who navigate this transition most successfully aren't necessarily those who replicate their former intensity. Instead, they're the ones who build exploration into whatever comes next. Not constant novelty, as that would be exhausting, but deliberate encounters with the unfamiliar.

This may involve learning something genuinely new, taking on work in an adjacent field rather than the same one, engaging with people whose thinking challenges yours.

And accepting that not knowing is uncomfortable but necessary.

This isn't about building expertise (you already have that) and it’s not about productivity (I’ve written before about why time doesn’t need justifying). It's about engagement, maintaining the cognitive habits that institutional life once required. The discomfort of unfamiliar territory might be doing more work than it feels like it is.

Not everyone needs this. Some find deep satisfaction in consolidation, in teaching, in going deeper into what they already know well. And there is no getting away from it - age matters. What works at one stage doesn't always work at another.

But if you're finding yourself restless, or struggling to concentrate, or discovering that familiar patterns aren't quite enough, the answer might not be more of the same. It might be deliberately seeking out what you don't yet know. And you may well find yourself going against your instincts, as depth is the defining discipline of professional practice, but going broader preserves cognitive vitality.