Which Part of Your Work Would Still Matter in Ten Years

He was ten years into a good run and had shipped more than he could remember, so the folder took a second to place. It turned up on a Sunday, cleaning out an old drive, one of those twenty minute jobs that becomes four hours. Two years of his thirties, a launch, a bonus, a photo of the team holding a banner. He sat trying to name one thing that project had changed, and came up with nothing.

He would do those two years again, and that is the interesting part. They bought the house and built the reputation that got him the next job. Nothing was wasted. It is simply a fact about how work distributes over time.

Most of what you do this quarter will be gone in ten years, and a small part will still be running without you. Sorting which is which takes about twenty minutes, and it changes what you agree to on Monday.

Which parts of my work actually last ten years?

Three kinds survive: systems that keep running without you, standards other people adopted, and people who can now do something because of you. Deliverables almost never make the list, no matter how large they were at the time.

Look at the pattern in your own field and it holds up. The report was read by nine people and archived. The template you built for writing that report is still in use, renamed twice, and nobody knows you made it. The negotiation you won closed one deal. The way you taught your team to open a negotiation is now how four people do it, and two of them have left and taken it with them.

None of this is an argument against deliverables. Deliverables are how you get paid, how you build a reputation and how you earn the standing to do anything else. It is an argument about proportion. A quarter made entirely of deliverables is a quarter that leaves no residue, and a career made of those quarters is the folder on the old drive.

How do I run the sort in twenty minutes?

List everything you worked on this quarter in one column, then put three marks beside each line. Does it run without me. Did anybody copy it. Can somebody else now do this because of me. Anything with no marks is finished work, which is fine, and which will be most of the list.

A few notes so the exercise stays honest.

Do not judge the unmarked lines. They paid for the marked ones. The goal is not a quarter where everything is permanent, which is neither possible nor desirable.

Count copying as the strongest signal. If a colleague started doing something your way without being asked, you built a standard, and standards are the cheapest durable thing on the list because they spread on their own.

Be strict on the third mark. "I helped" does not count. The test is whether a specific named person can now do a specific thing they could not do in January.

At the end you will have between one and three marked lines. That is a normal, healthy result. If you have zero, that is useful information rather than a verdict, and it is fixable inside a single quarter.

Run the same sort backward once, on a quarter from five years ago, and the exercise stops being theoretical. You already know how that story ends, so the marks are easy to award honestly. Almost everybody finds the same shape: the thing they were proudest of at the time is gone, and something they did in an afternoon and never mentioned in a review is still in use. That is not a reason to have worked less then. It is calibration for what to protect now.

Does a person really count as work that lasts?

A person is the most durable version of it, because a person carries the thing into rooms you will never enter and improves it on the way. The system you shipped gets deprecated, and the colleague you taught is still doing the work in ten years with your fingerprints on the method.

The part people miss is what it does for you, and this is not a moral point. Teaching is the fastest way to learn something twice. Researchers at Washington University in St. Louis found that people who studied a passage expecting to teach it recalled more of it and organized what they recalled better than people who studied expecting a test, without ever doing any teaching at all. Karpicke and Roediger's work on retrieval points the same way: pulling knowledge out is what fixes it, and studying it again mostly is not.

So the hour you give somebody junior is not an hour off your own craft. It is a second pass through your own craft, at speed, with an examiner in the room. The parts you cannot explain out loud are exactly the parts you were faking, and a student finds them in about four minutes, which is faster than any amount of solo practice will.

Two things make it stick rather than evaporate. Write the thing down so somebody else can actually run it, in plain language, in one page. Then say that person's name in the room where credit gets assigned, because a skill somebody has and nobody knows they have is a skill that does not travel.

What do I do on Monday with the answer?

Protect one ten-year item and let six quarterly ones stay ordinary. Put the ten-year item on the calendar first, at a time you defend the way you would defend a client meeting, and let everything else fit around it.

In practice that means one hour a week, not a sabbatical. An hour to write down the process nobody has written down. An hour with the person who could run this if somebody showed them. An hour turning the thing you do well into a thing other people can copy. It is a small enough commitment that it survives a bad quarter, which is the whole design requirement.

You just found one thing worth ten years of somebody's attention. Write it somewhere physical, because the sort is easy to run and easy to lose, and the value is entirely in still knowing the answer in March.

The other change is what you say to a request. Once you know which of your work leaves residue, a new project is easy to sort in about five seconds: does this produce a deliverable, a standard, or a person. All three are legitimate answers. Only one of them is still there in ten years, and knowing which one you are agreeing to is the difference between a full calendar and an aimed one.

Ten years is a filter, not a verdict

Most of your work is supposed to be temporary. Quarterly output is how organizations move and how careers get built, and a person who refuses to ship anything ordinary will not be around long enough to build the durable thing at all.

The filter simply makes sure something is left behind while you do all of that. Ship the quarter hard. Keep the ambition where it is. Then take one hour a week and point it at a system, a standard or a person, and in ten years you will be able to name the thing that is still running, which is more than most people can do from a much larger pile of work.

Sources

• Washington University in St. Louis, Expecting to teach enhances learning, recall
• Science, The critical importance of retrieval for learning