Novelty Saturation Theory posits that as individuals age, they experience fewer novel events, which leads to the brain encoding fewer detailed memories and a perceived acceleration of time. This theory suggests that the richness of childhood, filled with "firsts," contrasts starkly with the more routine experiences of adulthood. As routines solidify, the brain requires a greater reason to pay attention and create lasting memories.
The phenomenon is linked to how the brain encodes memories; new and unique experiences are richly encoded, making time feel expansive. Conversely, familiar events are compressed, leading to a sense of time passing quickly. Actively seeking novelty, whether through new hobbies, exploring unfamiliar places, or making small changes to routines, can create more memorable moments and slow down the subjective experience of time. Psychologists suggest that cognitive decline in aging may be linked to this phenomenon, as reduced engagement with novelty can lead to less robust memory formation.
