Ask adults how much they changed over the past ten years and most describe a lot; ask how much they will change over the next ten and they describe relatively little. In a series of studies published in Science in 2013, people at every adult age tested expected to change less over the coming decade than people ten years older reported having changed over the same stretch of life.¹ That gap is the quiet flaw in most five-year plans: they are written for a person who will not quite exist.

So the way to create a five-year plan without pretending to predict the future is to plan in layers: a direction for year five, moves that work in more than one future, detailed goals only for the next year, and a yearly review that lets the person you become rewrite the rest. In five steps:

1. Write the direction, and the reason behind it
2. Favor moves that pay off in more than one future
3. Make only the next year concrete
4. Imagine the year has already gone wrong
5. Review the plan every year and roll it forward

The first-year goals follow the ordinary rules for setting goals you’ll actually reach. This guide is about the four years beyond them.

You will change more than your plan expects

The end of history illusion is the tendency to treat the present as the point where your personal change has mostly finished. Psychologists Jordi Quoidbach, Daniel Gilbert and Timothy Wilson found it for personality, core values and everyday preferences alike, by comparing what people predicted about the next decade with what people ten years older reported about theirs.¹

The study

Moderate evidence

Six Science studies that set remembered change against predicted change (2013)

Participants rated their personality, values or preferences as they are now and were randomly assigned to say either how they had been ten years earlier or how they expected to be ten years on. At every age studied, people predicted less change for the coming decade than people a decade older reported for the same years, for traits, for values and for favorite music, food and friends. In a separate experiment with 170 adults, people said they would pay 61% more to see their current favorite band in ten years than others would pay now to see the band they had loved a decade earlier.¹

The design is cross-sectionalcross-sectional: Describes a study that measures everyone in its sample at a single point in time. Because the possible cause and the outcome are recorded together, it can show that two things occur together but not which of them came first.Full entry in the glossary: it compares different people rather than following the same ones, so the authors checked the result two ways. In a separate US survey that measured the same adults’ personalities about a decade apart, personality had changed about as much as the reporters remembered, and more than the predictors expected. And a plain question about changing as a person, with no traits named, showed the same gap between looking ahead and looking back. Most volunteers came through a television show’s website, so they were not a random sample.¹ A 2022 study by Brian Haas and Kazufumi Omura found the gap between reported past change and predicted future change larger among Americans than among Japanese participants, so its size may vary with culture.²

The authors suggest two reasons why people who remember changing a lot expect to stop. People tend to like who they are and to believe they know themselves, so change can feel unwelcome. And imagining a future self is harder than remembering a past one, so a change that is hard to picture may feel unlikely.¹

History, it seems, is always ending today.

An illustrative case: someone in their late twenties builds a five-year plan around making partner at a law firm, assuming the person in their thirties who inherits it will still want the hours, the city and the work that come with the title. The research cannot say which preferences will shift, only that more of them are likely to shift than the planner expects.

How satisfied you will be with your life is less settled. In a longitudinal studylongitudinal study: A study that measures the same people more than once over a period of time, so it can see how they change and which thing came first. Following people over time still does not show that the earlier thing caused the later one.Full entry in the glossary that asked the same American adults about their lives years apart, researchers at Brock University in Canada found in 2019 that most people were accurate about their future life satisfaction or expected too much change, with younger and middle-aged adults expecting more improvement than came. Quoidbach and colleagues reanalyzed the data and found too little predicted change in absolute size; the Brock team traces the disagreement to whether the direction of change is counted.³ Our reading: expect to change, but do not count on the change making you happier.

Plan for more than one future, not the likeliest one

A plan built on one forecast can break when the world takes another turn, and testing it against several futures shows which moves still hold. In three workshop studies with US transportation experts, published in 2015, Shardul Phadnis, Chris Caplice, Yossi Sheffi and Mahender Singh found that after working through several scenarios, experts shifted toward more flexible options for long-range investments.⁴

A single forecast hides how a choice would fare if things went another way. In the workshops, when an expert’s view of an investment changed after one scenario, it tended to turn more favorable if the investment proved useful there and less favorable if it proved wasteful. Seeing all the scenarios left overall confidence unchanged, and most experts still chose the least flexible option.⁴ The caveat is large: the participants were experts judging US infrastructure, not people planning their lives, and with no comparison group the shift cannot be firmly credited to the scenarios.

Your own circumstances will not hold still either. US Bureau of Labor Statistics figures show that in January 2026, the median US wage and salary worker had been with their current employer for 4.1 years, up from 3.9 years in 2024.⁵

Time so far in a job is not how long a job lasts, and the figures are US only, but for many readers the employer in year five of a plan may not be today’s.

For a career plan, as an illustration, say your futures are a promotion where you work now, a reorganization that removes your team, and a move to another city for a partner’s job. Becoming the only person who understands one internal system pays off in the first alone. Getting better at explaining numbers to non-specialists, and keeping in touch with people outside your company, pays off in all three. If one future is a new field altogether, weighing a change of career has tests of its own.

What to watch for: a move that makes sense in only one future is a bet. A plan can hold a few bets, as long as you know which they are.

Further reading

• 

  Designing Your Life: How to Build a Well-Lived, Joyful Life

  by Bill Burnett and Dave Evans

  Its Odyssey Plans ask you to sketch three different five-year lives, much like testing a plan against several futures here.

• 

  Stumbling on Happiness

  by Daniel Gilbert

  Daniel Gilbert, co-author of the end of history study, on why we misjudge what our future selves will want.

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Five steps to a five-year plan that expects you to change

A five-year plan that allows for change takes five steps, and the evidence thins out as you go: the first two apply the research above, the third rests on experiments about time estimates, and the last two mainly on small experiments and our reasoning.

1. Next year: one to three goals with dates and a first step, sized from your own track record
2. The middle years: moves that pay off in more than one future; a move that fits only one path is a bet
3. Year five: a direction and the reason behind each line, not a forecast
4. Once a year: reread the reasons, redraw the paths and add a new fifth year

1. Write the direction, and the reason behind it

Describe year five in a few lines as a direction rather than a position: the kind of work, the skills you want, the life around it. Beside each line, write why you want it. “Lead projects end to end, because I like seeing the whole thing through” gives your future self something to test; “Head of operations by 2031” gives them only a title to hit or miss.

The reasons are our application of the end of history research: if your preferences shift more than you expect, a reason lets the person you become judge the plan instead of simply inheriting it.

2. Favor moves that pay off in more than one future

Write down two or three plausible futures that differ in something you cannot control, such as your employer, your city or your caring responsibilities. Then list the moves that would help in most of them, and mark the rest as bets. Skills that transfer between employers, relationships beyond your current team and work that other people can see tend to travel well; that list is our judgment, not a tested one.

3. Make only the next year concrete

Turn the first year into one to three goals you can check, each with a date and a first step, and leave everything after it as direction and moves. If the direction reads “lead projects end to end”, a first-year goal might be “run one small project from brief to delivery by September”, with asking your manager for one this month as the first step.

Then size the year from what you have finished before, not from what you hope to finish. Roger Buehler, Dale Griffin and Michael Ross’s 1994 paper on the planning fallacy found that only about 30 percent of the honors-thesis students they followed finished by the date they had predicted. In another of the paper’s experiments, students asked to connect past assignments to the new one lost the usual optimistic tilt, though their predictions were no more accurate.⁶

The tilt is common rather than universal: a 2012 review by Torleif Halkjelsvik and Magne Jørgensen found underestimates reported more often than overestimates in engineering and management studies, but not in psychology studies.⁷ Your own record adjusts for whichever way you tend to err, which is why estimating from your own past tasks beats a general rule of thumb. If your last three “by September” goals landed in December, plan the next one for December.

4. Imagine the year has already gone wrong

Imagine it is a year from now and the first-year goals did not happen, and write down why, as if each reason had already occurred. Then pick the two or three likeliest, add a response to each, and note an early sign that would show each one starting. This is a premortem. Its closest research base is a 1989 pair of experiments by Deborah Mitchell, J. Edward Russo and Nancy Pennington on prospective hindsight, explaining a future event as if it had already happened. Their abstract reports that, in the first experiment, placing an event in the future or the past made little difference to how people explained it, while treating it as certain did: explanations of sure events tended to be longer and leaned more on specific episodes.⁸

The part that seems to matter, then, is writing the failure as a fact, not a possibility. “Work might get busy” is a worry; “in March a reorganization moved me to a new team and the course lapsed” is an episode you can plan a response to. We found no peer-reviewed trial of premortems on personal plans, so treat it as a cheap habit with a plausible rationale.

5. Review the plan every year and roll it forward

Once a year, reread the plan and check the early signs. Strike out goals whose reasons no longer hold, note which of your futures seems to be arriving, write the next year’s goals, and add a new fifth year so the horizon stays five years away: a plan written in 2026 for 2031 becomes, a year later, a plan for 2032.

No study has tested this rolling approach for personal plans; the reasoning is ours. It turns the end of history illusion from a flaw into a schedule: instead of predicting who you will be, you meet that person once a year and let them edit.

WiserHours

Your five-year plan, step by step

• A few lines on where I want to head in five years
• The reason beside each line
• Two or three futures I cannot control, written down
• The moves that help in most of those futures, with bets marked
• One to three first-year goals with dates, sized from my track record
• A premortem: why the first year failed, with a response to the likeliest reasons
• A date next year to reread, revise and add a new fifth year

Find this checklist online:
https://wiserhours.com/goals/five-year-plan/#checklist-five-year-plan-steps

Which parts of the plan rest on research, and which on reasoning

The strongest evidence for planning in layers concerns how people misjudge their own future: they expect to change less than older people report, and often finish later than they predict. The case for scenarios comes from experts judging investments; the premortem and the yearly roll-forward rest mainly on reasoning.

Hold the better-supported parts firmly, expecting to change and sizing the year from your record. Treat the premortem and the roll-forward as habits on trial, and shorten either one if it stops telling you something new.

The bottom line

You cannot predict the person who will live in year five of your plan, and you will probably underestimate how different they are. So write a direction and the reasons behind it, favor moves that help in more than one future, make only the next year concrete, and meet the plan once a year so that person can revise it.