MemoryDensity
The years are getting shorter. That's not in your head.
How much of your life is one year
Compared to a 10-year-old, each of your years feels
Copies a link to this page set to your age
MemoryDensity is built to fight this.
A daily prompt. A first-times log. A weekly Time Capsule. One score that measures whether your life is getting richer.
Free to use — join the early access list and be first through the door.
10%
of life in one year
5%
of life in one year
of life in one year
The years are getting shorter. That's not in your head.
You remember summers that lasted forever. Years that felt full. A childhood that seemed to stretch on without end.
At some point that changed. Not gradually — suddenly. Whole months disappear. You blink and it's December again. You ask yourself where the year went and you genuinely don't know.
This is age-based time compression. As you age, each year becomes a smaller fraction of everything you have already lived. Your brain, running on routine, stops encoding the present with any detail. Robert Lemlich first formalized this mathematically in 1975. The research has only deepened since.
But here is what the research also shows: it is not inevitable.
Memory Density Score
Your Memory Density Score is the measure of how many distinct, retrievable moments your life contains in a given week. A week full of first-time experiences, noticed details, and moments worth telling someone about — that week feels long both as it happens and when you look back on it. A week of identical days disappears.
MemoryDensity is built around one idea: raise that score, and time slows down.
One minute a day. Everything else follows.
One question, once a day, designed to interrupt autopilot. Some nudge you toward novelty. Some anchor you in the present. Some ask you to name one moment worth remembering before the day closes.
A running record of experiences you are having for the first time, however small. A new street. A dish you have never cooked. A conversation you would normally avoid. First-times are the most richly encoded memories your brain makes. Logging them gives you a reason to seek them.
Every Sunday, your week's prompts and first-times are assembled into a digest. A week with a full capsule feels longer to look back on than a blank one. The capsule is the direct antidote to "where did the month go?"
A weekly number that measures the only thing that actually predicts whether your life will feel long or short in hindsight. Watch it rise. Feel the difference.
Free. No paywall. No subscription. Built for people who feel the acceleration and want tools to fight it.
Stop losing years.
You already know time is moving faster. Most people notice and do nothing — because there has been nothing to do.
MemoryDensity is something to do.
Join the early access list. One email. No account required. No spam.
We'll email you the moment MemoryDensity opens. That's it.
The science behind MemoryDensity
The concept of age-based time compression draws on decades of psychological research into how subjective time perception changes across a lifespan. The foundational work is:
Lemlich, R. (1975). Subjective acceleration of time with aging. Perceptual and Motor Skills, 41(1), 235–238. doi.org/10.2466/pms.1975.41.1.235