

Your childhood feels like eternity. Teenage years feel very slow. Then after ~21 years old, everything speeds up. There are a few theories about this: > Metabolism slows with age (children burn energy 50% faster than adults) > Children also have 80% water by volume, as we age this decreases as low as 50% > Dopamine dysregulation (bell-shaped curve) rewires the brain to alter time perception, esp. when using artificial dopamine > Entropy rises with age (tied to energy loss), rising disorder reduces coherence, mitochondrial function, and timing precision across all systems I imagine that dopamine dysregulation, water networks, and metabolism are the biggest drivers here. Dopamine being of significant importance because of how the modern world is anti-dopamine, where we can't even sit still for more than 30 minutes because it "feels too long and boring" — whilst we can easily doomscroll for 30 minutes and it feels like 10 minutes.
























