Many letters are written for a date a year or five years away. A letter for ten to twenty years ahead is different. Your home, your work and your tastes may look nothing like they do now, and the person who opens the letter will have changed in ways you cannot see yet. This article shows how to plan one: what to write for a far future, how to choose a date, and what to do about the parts the service cannot change for you.
Why a longer horizon changes the letter
A short letter can lean on shared context. You know what this year looks like, so a sentence such as “the project is almost done” makes sense. A letter for twelve years ahead cannot lean on anything that stays still. Those details will have changed, and the reader may not remember them.
That is why a long letter works best with concrete details rather than opinions. An opinion is hard to read across a decade, because you will not remember why you held it. A detail, the brand of coffee you buy or the shop you pass every morning, brings the whole year back without any explanation. Write what you notice, and avoid telling the future reader what they should think.
The service sends the letter on the delivery date you choose, at some point between 8:00 and noon in your time zone. It adds no reminders, no context and no check-in. The letter has to carry everything by itself, so write it as if nobody will be there to explain it.
Choose a date up to 20 years ahead
The earliest date you can choose is tomorrow, and the latest is 20 years ahead. The quick options stop at three years, so for anything further, use the option to choose a date yourself. Pick the date before you write, so the letter can be shaped for it.
Good dates for a long letter often carry a personal meaning, like these:
- Your fortieth or fiftieth birthday
- Ten years from a move, a job or a milestone you are facing now
- A date that matters to someone you love
Check the date twice before you finish. Once the letter is written, you cannot change the date on the site, so a typing mistake stays with you. Note the day in your own records too, along with the time window.
Write what will be hard to remember
For a letter fifteen years ahead, write the things you would forget. Notice what feels too ordinary to write down today. Those ordinary things are often the ones your future self will want most. Consider writing about:
- The apps and tools you use every day
- The music you play on repeat
- The way your home looks and sounds
- One routine that is yours right now
- One question you cannot answer yet
Describe one ordinary day in detail. Name the time you wake up, the first thing you do, what you eat, and what you carry out of the door. Most of the letter can be small things, like the mug you use and the way the hallway smells on a weekday morning. A reader fifteen years on will not know any of it, and these are the easiest parts to write.
Keep the headlines small. A guess about the next big gadget or the next election will read strangely in fifteen years and pull the letter away from you. If you want the world in the letter, give it one line, from your own street: what the bus costs, or what everyone at work is arguing about.
Plan for changes in your email and your life
The letter goes to the address you enter when you write it. Letters cannot be edited or cancelled on the site, so that address is the one that will receive it. Choose an address you expect to keep for years, and write it down with the date and the time window.
A letter goes to one address, so a backup is something you arrange yourself. If you have two addresses you expect to keep, send the same text twice, as two letters with the same date, one to each address. Then keep a notebook page that says the letters are coming, the date, and where they were sent.
You may move, change jobs or lose access to an old account. None of that changes where a saved letter goes, so decide now which address you want to be reading in fifteen years.
Be careful with unsubscribing over the years. Every email from the service carries an unsubscribe link, and mail programs often offer their own unsubscribe button for the same email. Once either is used, every letter to that address stops, including the ones already scheduled. The site cannot reverse that, and there is no way to cancel just one letter.
Keep a copy you control
Nothing is emailed when you write the letter. The success message shows a Letter ID and the delivery time, and that is the only confirmation you get at that moment. Save the date, the time window and the full text in a place you own, such as a notebook, a printed page or a file on your own computer.
If a delivery fails, the service retries for a while, then alerts the people who run it. It does not tell the writer, and no email service can promise that a letter will arrive decades from now. That is why a copy you control matters. Keep the date with the copy, and look at it every few years to check that the plan still makes sense.
Letters are stored on our server as plain text, so keep anything sensitive out of the letter and use first names or roles for other people.
A sample letter for 15 years ahead
This sample is written for a date fifteen years ahead. It describes one plain day and asks one question.
Dear future me,
It is a Sunday in late October, and the radiator under the window is ticking. Here is a plain day, for the record. Alarm at 6:40. The bus costs [price] and is late about half the time. I carry keys, headphones and a paper notebook I still use for everything. Lunch is the same noodle place on the corner, where the owner nods instead of asking. Evenings are the same three albums while I cook. I would love to know which of these you would not recognize. And one question: are you still glad you started writing these letters?
[your name]
Write it now
Pick a date that feels a little far away, and write one paragraph about your home or your daily routine today. Ask one question you cannot answer yet. Then write down the email address the letter will use, the date and the time window, and keep that note somewhere you control.
