Summary of "Почему время ускоряется с возрастом? | Наука восприятия от Richard Feynman"

Summary: How subjective time depends on information and attention

Subjective acceleration of life is primarily an informational/attentional phenomenon linked to entropy and information theory — not just biological decline. By increasing novelty and attention you can create more encoded memory “frames” and make time feel longer.

Key scientific concepts and phenomena

Subjective time (psychological time) depends on information density: moments packed with novel information feel longer; repetitive, predictable periods feel shorter.
Entropy and the arrow of time: the physical arrow of time arises from transitions from order to disorder (e.g., ink mixing in water, gas diffusing in a box). Change creates history.
The brain as an information-recording physical system: memory records novel, high-entropy input more densely; predictable input is compressed and recorded sparsely.
Information theory: predictable signals carry little information; unexpected events carry high information and produce richer memory traces.
Data compression in cognition: as we learn patterns and predict outcomes, the brain stores less detail (a lower “frame rate” of experience), creating the illusion that life is accelerating.
Relationship to thermodynamics and physics: the subjective effect links to entropy, probability of states, atomic/molecular dynamics, and the universe’s long-term increase in entropy (heat death).
Neural plasticity and metabolism: forming new memories and confronting novelty consumes energy; novelty “heats” the brain and forces denser encoding.
Psychological “relativity”: unlike physical time dilation (where fast motion slows clocks), psychological autopilot speeds subjective life by reducing recorded detail.
Attention and presence: being attentive increases information intake and memory encoding; absence from the present (autopilot) compresses subjective time.

Mechanisms / explanatory model

Perception of duration is proportional to the amount of new information encoded.
Childhood → high novelty → high information density → many memory “frames” (analogy: high FPS) → days feel long.
Adulthood / routine → high predictability → brain compresses input (low FPS) → replayed memory appears brief/blurred → time feels to “fly.”
Physical analogy: ordered, low-entropy states are rare; natural tendency is toward mixing and increased entropy. The brain builds internal order (models), reducing perceived novelty.
Resulting paradox: while the external universe tends toward greater entropy, a well-trained/experienced brain increases internal predictability (low novelty), which reduces subjective duration.

Practical recommendations to “slow down” subjective time

Introduce novelty and unpredictability
- Take new routes, change routines, try different foods.
Make activities intentionally inefficient or challenging
- Get lost sometimes, learn a new language or instrument, tackle difficult skills.
Break automatic patterns
- Perform habitual tasks with your non-dominant hand, change the order of usual actions.
Heighten attention and presence
- Notice small sensory details (light, sounds, textures), listen as if it’s the last time, recall what you experienced today.
Simple micro-practices
- Each day, notice 3–5 things you hadn’t noticed before, feel your breath, pause and attend to the current frame of experience.
Emphasis
- Seek novelty without radical life overhaul — small, daily changes embedded in routine are effective.

Analogies and illustrative examples

Ink drop in a tank of water: mixing creates rich patterns and records history (entropy increase).
Box of gas molecules: ordered clustering is rare; diffusion increases entropy.
Movie camera / frames per second: childhood recorded at high FPS (many frames) vs adult routine at low FPS (few frames).
Slices of spacetime / indistinguishable slices: routine days collapse into indistinguishable memory slices.
Book with identical sentences vs unique pages: unique pages force rereading and create perceived length.
Heat death of the universe as ultimate entropy increase; contrast with keeping one’s brain from settling into maximal predictability.

Takeaway

Subjective acceleration of life emerges from how the brain encodes information: routine, predictable inputs are compressed and recorded sparsely, making time feel shorter in retrospect. Because the brain is plastic, you can increase the perceived length of life by deliberately increasing novelty and attention, thereby creating more encoded memory “frames.”

Researchers and disciplines invoked

Individuals mentioned: Richard Feynman, Albert Einstein
Disciplines and concepts: thermodynamics (entropy), information theory / physics of information, neural plasticity, metabolism, dopamine (common biological reference)