Why does time feel faster as we grow much older?

Question

Accepted Answer

The Proportional Theory

One compelling explanation is the Proportional Theory. As one ages, each year represents a smaller fraction of the total life experienced. To a five-year-old, one year is 20% of their entire life, making it feel vast and full of novel discoveries. To a fifty-year-old, a single year is merely 2% of their existence, causing it to pass by with less perceived significance.

The Role of Novelty

Brain Processing: During youth, the brain is constantly encountering new stimuli, requiring high levels of neural engagement and detailed memory encoding.
   Routine Efficiency: As adulthood sets in, life often becomes structured around repetitive habits. The brain stops recording these 'predictable' events with high precision, creating a compressed perception of time.

Psychological Encoding

When life is filled with unique, awe-inspiring experiences, the brain creates richer memories. By intentionally seeking novel environments, learning new skills, or traveling to unfamiliar locations, individuals can effectively 'stretch' their subjective perception of time. Breaking the monotony of daily patterns is the most effective way to slow down the relentless pace of the passing years.