October 25, 2026

Letter to your future self: why use your voice

Writing a letter to your future self helps you look ahead, but a voice message goes further: you don't reread an intention, you hear the person you were. Psychologist Hal Hershfield's research shows that we take poor care of a future self who feels abstract. Anything that makes that future self concrete helps us act on their behalf, and a voice is one of the things that makes it concrete.

Why we neglect our future self

It isn't a lack of willpower. It's that our future self doesn't feel entirely real.

In 2009, Hal Hershfield and his team asked participants to pick, from seven pairs of more or less overlapping circles, the one that best showed how close they felt to the person they would be in ten years. Among adults aged 20 to 86, the less the circles overlapped, the less savings and wealth those people had built up, even at the same age and level of education. Seen from a distance, the future self becomes almost a stranger: someone we don't really feel responsible for.

The finding goes beyond saving. It applies to any decision that asks for effort today for a benefit later.

Making your future self concrete

Later research tried to close that distance. In 2011, Hershfield's team showed participants an aged version of their own face, in virtual reality or in a photo. When then asked to allocate a hypothetical sum of money, they put a larger share into a retirement account than those who had seen their current face. The principle is always the same: the more concrete the future self, the more we act in their favor.

Yet the usual methods rely on writing: goal lists, resolutions, letters to yourself in ten years. Writing is an intellectual projection. You draft, you rephrase, you reread yourself through the filters of the day.

What your voice keeps, and writing erases

With a letter, you roughly know what to expect when you reread it: the tone flattens, the wording stays polite. A voice recording doesn't do you that favor. It keeps the exact energy of the moment, the hesitations, the things you said without preparing them.

Your future self is no longer an idea you picture. When the message comes back, you hear someone who really existed, on a specific date, and who had something to say to the person you've become in the meantime.

My first capsule

I built Eliveo for this, and I tested the idea on myself. I recorded a capsule set to open a few months later.

I didn't list goals in it. I projected myself into what I really wanted to achieve: how I was going to go about it, and above all why it mattered so much to me, with the doubts I had at the moment I was speaking.

While recording it, I realized a capsule doesn't need a date. It can wait for a milestone: the end of a project, a move, a step taken, without knowing when it will happen. The person who opens it won't just be "later", they'll have "arrived". That became Eliveo's trigger capsule.

How to talk to your future self with Eliveo

1. You record. You press and talk, for a few seconds or several minutes, as you would to someone close.
2. The capsule seals. You choose when it comes back: on a date (in three months, in a year, on a birthday evening) or at a life moment ("when this project is done"). Until then, you can't listen to it.
3. Your voice comes back to you. When the day comes, you hear the person you were.

Capsules are encrypted and stay on your phone: the app has no server, no online account, and works offline. Eliveo is in beta on Android, free during the beta.

Taking care of your future self

Hershfield showed what happens when the future self stays abstract: we stop looking after them. A voice capsule isn't a motivation trick. It's the most literal version of his conclusion: instead of imagining someone, you leave them a message.

Mine is still waiting. The day I open it, I won't hear a good resolution. I'll hear someone who really existed telling me it was worth it, before she even knew whether she was right.