For many, the memory of childhood is defined by a sense of infinite time. Summers seemed to stretch on forever, seemingly only ending when the inevitable arrival of school supplies forced a transition. In contrast, adulthood often feels like a race against the clock, where seasons slip away almost as soon as they begin.
While it is easy to assume this is simply because children have more free time, the real reason is rooted in the complex relationship between neurobiology, memory, and novelty.
The Science of “Firsts”
According to Dr. Marc Wittmann, a time perception researcher and author of Felt Time, the sensation of time passing is dictated by how many memories our brains actually store. Our perception of a period’s duration is essentially a reflection of the “data” we have to look back on.
In childhood, the world is a constant stream of novel experiences. Every event—a trip to the beach, a first ride on a pony, or even a new seasonal snack—is a “first.”
“Everything seems new in childhood… this causes us to store the memory as something special,” explains Wittmann.
Because these experiences are unique, the brain encodes them deeply. When we look back on those years, the density of these high-quality memories creates the illusion that the time spent was vast and expansive.
The Myth of Proportional Time
A common theory suggests that time feels faster because each year represents a smaller percentage of our total life (e.g., one year is 20% of a five-year-old’s life, but only 2% of a fifty-year-old’s). While mathematically intuitive, Wittmann notes there is no scientific evidence that the brain performs this type of proportional calculation.
Instead, the acceleration of time is driven by two main factors:
1. Predictability: As we age, our lives become more routine. We have “seen this all before,” meaning our brains stop recording the mundane details of our daily lives.
2. Cognitive Encoding: Research suggests that as we age—a process that can begin as early as our 30s—our ability to encode the “unremarkable” moments of life begins to decline.
Interestingly, Wittmann’s research shows that older adults don’t necessarily have “fainter” memories; rather, the memories they do keep are often richer and more emotionally resonant. The issue is that we simply stop recording the “filler” moments that make up the bulk of our days.
How to Slow Down the Clock
While we cannot reclaim the biological novelty of childhood, we can influence how we perceive time by intentionally changing how we live. To prevent life from feeling like a blur of repetitive tasks, experts suggest several strategies:
- Seek Novelty: Break your routines. Visit new places, meet new people, and try activities that catch your brain off guard.
- Prioritize Emotion: Wittmann notes that emotions act as “the glue for memory.” Highly emotional experiences are more likely to be etched into our long-term memory, making them feel more substantial when we look back.
- Avoid “Schedule Overload”: While it sounds counterintuitive, packing every minute of a weekend with tasks can actually make time feel like it’s flying by because you are too focused on the timeline.
- Practice Presence: Instead of rushing through a checklist, try “living into” your time. Be mindful of your surroundings and your internal state.
Conclusion
The sensation of time speeding up is not a mathematical inevitability, but a byproduct of a brain that has grown accustomed to routine. By embracing new experiences and emotional depth, we can create more “memory anchors” that make our lives feel as expansive as those endless childhood summers.
