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Why time speeds up as you age (and what to do about it)

George Mack Read Mar 13, 2026 Published Feb 27, 2024 x thread

Key Ideas

Three Dimensions of Time

Time can be measured by the clock, by how it feels in the moment, and by how much we actually remember. When people say time is flying, what they really mean is they have no memory of where it went.

Memory Encodes Novelty

New and unfamiliar experiences get stored in memory while routine days blur together and disappear. This is why the first 18 years of life feel so rich and long in hindsight compared to repetitive adult years.

Seek Daily Novelty

To slow down perceived time, you need to break routine constantly, even with small things like a new route or a random conversation. Creating at least one genuinely different day every two weeks gives your future self something to find when looking back.

Stories Outlast Scrolling

Hundreds of social media posts vanish from memory within hours despite being novel, while a great movie watched years ago stays vivid. Memory seems to favor experiences that are shaped like meaningful stories with turning points, not just random novelty.

Actionable Insights

Schedule one radically different day every two weeks

Block a full day every 14 days that is dramatically unlike your routine — a new city, a new skill, a social setting you've never tried. This creates a memory anchor that future-you can easily locate when reflecting on the past.

Replace passive scrolling with narrative-rich media

Swap at least one daily social media session for a film, long-form essay, or book with a clear story arc. Narrative structure — plot, tension, resolution — encodes memory far more durably than hundreds of disconnected social posts.

Audit last year's memories to identify your novelty patterns

List every day you can recall from the past 12 months, then examine what those days share. Use that pattern deliberately to engineer more of the same conditions going forward, rather than leaving memorable days to chance.

Related

Newport - How To Plan Better Simple Analog System
Both texts are concerned with making time feel intentional and substantive rather than letting it pass unnoticed.