10 Futures Fallacies and How to Overcome Them
Ivana Milojević's taxonomy of futures fallacies, what each one looks like from inside the work, and the counter-move that interrupts it.
Photo by Bret Kavanaugh on Unsplash
Foresight earns its keep by getting people ready for what cannot be known. That is also what makes it awkward to do well, because imagining what might happen is not a natural act, and two different kinds of error get in the way. Biases are the standing tendencies in how we judge things. Fallacies are faults in the reasoning itself, in how we travel from what we know to what we are willing to say about what comes next. In futures work the two feed each other.
None of it is random. The same errors recur across sectors and seniority levels, and once you can name them you start hearing them in meetings and workshops and conferences.
The most useful catalogue of them comes from Ivana Milojević, who set out ten futures fallacies in the Journal of Futures Studies in 2021, building on Adam Dorr's earlier identification of three informal fallacies in Technological Forecasting and Social Change (2016). The ten below are hers.
What I have added is the practitioner layer. I meet all ten constantly, in futures work and in the world outside it, and the version that turns up in a client workshop often has a different texture from the version on the page.
They fall into three families.
Fallacies of extrapolation
Fallacies of confidence
Fallacies of attention
Fallacies of extrapolation
These three are Dorr's. They concern how change itself gets modelled.
1. Linear projection
The error
Presuming that future change will be a simple, steady extension of past trends.
In practice
More of the same is the easiest thing to expect, so it becomes the default baseline. Then a plan gets disrupted by the one thing that was never in the line. The pull here is not analytical. Continuation is cheap to imagine, and it never has to be defended, because nobody argues with a straight line.
The counter
Pair every trend line with the condition that would end it. If nobody in the room can name what breaks the trend, the group has not examined it. They have drawn it. Milojević points to emerging issues analysis and explicit discussion of low-probability, high-impact events. There is a cheaper version too: find a historical stretch of the same length in which this trend, or one like it, reversed, and work out what did it.
2. Ceteris paribus
The error
Reasoning about one aspect of change while holding everything else equal.
In practice
This one deserves some sympathy. Simplification is sometimes necessary, and isolating a single node of a system does make the problem tractable. Tractable work gets done. It is simply not more accurate, and that is the trade being made. There is a second half that people forget: not everything is disrupted. Plenty of things hold perfectly well across fifteen years, and treating every constant as suspect produces analysis nobody can act on.
The counter
The fallacy is not simplifying. It is simplifying silently. Say what is being held constant, write the list down, then ask which item on it is weakest. Milojević's remedy is the futures wheel, which maps first, second and third-order consequences until the knock-on effects of the isolated variable become visible.
3. Arrival fallacy
The error
Treating a future as a static destination, when what you have is a snapshot of a process that carries on.
In practice
This happens in more or less every process. Teams stare at a scenario set or a vision as though it were fixed, while the futures keep moving underneath it. A scenario built in 2023 was built from the drivers visible in 2023. It has a shelf life. That is the strongest argument I know for doing foresight continuously, instead of as a one-off project that ends in a document.
The counter
Date every scenario. Then ask what the following decade looks like from inside it, because a future with no "and then" is a destination. Build the revisit point into the engagement at the start, before the report becomes the finish line. Milojević suggests historical examples of continuous change, and time machine methods.
A note on the name. In psychology, "arrival fallacy" is Tal Ben-Shahar's term for the illusion that reaching a goal will deliver lasting happiness. The futures usage is a different concept that happens to share a label. Worth knowing if you go looking for sources.
Fallacies of confidence
These concern how much we believe we know, and how much control we credit ourselves with.
4. Planning fallacy
The error
Over-promising, through an optimistic bias in prediction.
In practice
I see this constantly. Bent Flyvbjerg's work on megaprojects is the reference, and it separates two causes that usually get conflated. Optimism bias is people sincerely underestimating. Strategic misrepresentation is underestimating because that is how a project gets approved. I would add a third: plans are built around a set of assumptions and then locked. A plan that cannot bend does not fail because the estimate was wrong. It fails because it had no way to absorb being wrong.
The counter
Take the outside view. Flyvbjerg's reference class forecasting is the operational form of it, comparing the project against the spread of outcomes from similar past projects, the abandoned ones included, instead of reasoning forward from this project's own plan. Then build the adaptability in early, with decision points and pre-agreed triggers. Milojević adds three moves that go at the politics rather than the arithmetic: bring less powerful participants into the estimate, work the worst case explicitly, and give pessimism standing in the room.
5. Prediction fallacy
The error
Believing the future (singular) can be predicted.
In practice
Every futurist's pet peeve, and it deserves more care than a slogan. Anticipation does involve some predictive understanding. A few things are reasonably knowable over a given horizon, demographic structure and installed infrastructure among them, and pretending otherwise is its own distortion. What does the damage is the claim. Saying we can predict the future sets up the failure that gets cited later as proof that futures work does not deliver.
The counter
Change the grammar. Swap "will" for "could" and attach the conditions it depends on. Any statement that cannot survive being rephrased conditionally is a prediction wearing a scenario's clothes. Where something really is predetermined over the horizon, say so, and say why. The distinction only helps anyone if it is visible.
6. Overinflated agency
The error
Attributing more coordination and intent to actors than the evidence supports. Milojević frames this around losing the ability to tell documented covert activity apart from conspiracy theory.
In practice
The same fallacy runs in a lower register, and the definition is worth extending to cover it. Agency is good in moderate amounts. An SME probably cannot change the whole world. It can make a dent. The useful position sits between those two, and overestimating your own control produces strategies built on the assumption that the environment will cooperate. This is exactly why scenarios and possible outcomes are necessary: almost nobody, at any size, controls what happens around them. To create meaningful change you need a grip on the plausible and the possible first. Then you shape what you believe in, inside those bounds.
The counter
For the conspiracy version, separate what is observed from what is inferred, then ask what would have to be true for the coordinated explanation to hold, and how many people would have to keep quiet. Check whether incentives and structures account for the same evidence without the coordination. For the organisational version, split every strategy into three: what you influence, what you can prepare for, and what you can only respond to. Milojević's own remedies work on the conditions that produce the fallacy rather than on the argument itself, through reducing the powerlessness that feeds it, visioning, backcasting, and rebuilding a sense of personal agency.
Fallacies of attention
These concern where we point our attention, and when. The last of them is the same misdirection turned inwards.
7. Future negation fallacy
The error
Denying the future as an object of concern, on the grounds that only the present exists.
In practice
The trouble starts with the word. People hear "future" and file it in the future, as something never urgent that can always become a priority later. It licenses procrastination by definition. But futures work exists to improve decisions now, which puts the word firmly in the present tense, and the processes that carry it along with it. This is a framing problem as much as a cognitive one, and it can be solved at the level of how the work is introduced.
The counter
Make the future specific, personal and present-tense. An abstract 2040 is easy to defer. A named date, a named person and a concrete object from that world are harder. Lead with the decision the work is meant to improve this quarter, and leave the horizon for later in the conversation. Milojević points to connecting the present self to the future self, and to experiential futures methods, which is what those methods are built for.
8. Time imbalance
The error
Unconsciously privileging past, present or future instead of moving between them as the question requires.
In practice
Everyone has an orientation, and that is fine. Some people are past-oriented, some present, some future, and a group needs all three in it. What causes trouble is imbalance; preference on its own does none. Part of the fix is literacy: understanding how time horizons relate to each other, and grasping that a claim about next year and a claim about 2050 are different kinds of claim, resting on different kinds of evidence.
The counter
Three horizons, which forces all three into one conversation and makes the relationship between them explicit. Milojević connects this to futures literacy and to Zimbardo and Boyd's work on time perspective as a measurable individual difference. A quick diagnostic: notice which tense a group reaches for when it is uncertain.
9. Present-attention fallacy
The error
Ignoring or minimising phenomena that exist but are not easily recalled or retrieved.
In practice
A double-edged sword. It clouds every process, because whatever is loudest this quarter crowds out what is slower and more consequential. It is also the most reliable way into a conversation. People engage with what is in front of them, so a live present-day issue is fertile ground for opening up its future consequences. The skill is using the present as a door rather than as the room.
The counter
Source deliberately from outside the group's information diet. Give someone the job of bringing material from an adjacent sector, a different country, a different political tradition. The fallacy is a property of the input. No amount of thinking harder about the same input will shift it.
10. Future personal exemption
The error
Holding an optimistic view of your own future alongside a bleak one about the collective future.
In practice
Relatable enough to be almost endearing. It is the instinct behind our appetite for dystopian films, where the assumption is always that we would be among the ones who make it. Nobody watches and identifies with the background characters. We all carry a dose of main character energy, and it survives contact with a difficult scenario surprisingly well.
The counter
Specificity. Ask people to put themselves inside the scenario concretely: where they live in it, what their work is, what it costs them, who in their family it touches. Personal exemption survives abstraction easily and rarely survives detail. Milojević's remedy runs through interconnection and holistic thinking, which arrives at the same place from the other direction.
What to do with the list
The ten are not equally common, and they rarely arrive singly. Linear projection and ceteris paribus usually travel together, since a straight line is easiest to draw when everything else is held still. Prediction and planning reinforce each other, because false confidence about outcomes makes an optimistic estimate feel reasonable. Future negation and personal exemption are two ways of not being in the room when the future arrives.
A taxonomy like this is most useful turned on your own output. Read back a scenario set, a strategy paper or a trend report and mark which of the ten it commits. Most documents commit at least three.
There is a line that gets attributed to Einstein:
"The world as we have created it is a process of our thinking. It cannot be changed without changing our thinking."
Whether he said it is doubtful. A great many quotations end up attached to Einstein, or Churchill, or Twain, because a famous name lends a sentence weight it would otherwise have to earn on its own, which is a small fallacy from the same family as the ten above. The point still stands, and it is the reason a list like this is worth the effort.
Originally published in 2023 and revised in September 2026.
Sources
Ivana Milojević, "Futures Fallacies: What They Are and What We Can Do About Them", Journal of Futures Studies 25(4): 1-16 (2021)
Ivana Milojević, "Futures Fallacies - Our Common Delusions When Thinking About the Future", Journal of Futures Studies (2020)
Adam Dorr, "Common errors in reasoning about the future: Three informal fallacies", Technological Forecasting and Social Change (2016)
Bent Flyvbjerg, "Curbing Optimism Bias and Strategic Misrepresentation in Planning: Reference Class Forecasting in Practice", European Planning Studies 16(1) (2008); "Top Ten Behavioral Biases in Project Management", Project Management Journal (2021); and Bent Flyvbjerg and Dan Gardner, How Big Things Get Done, Macmillan (2023)
Daniel Kahneman, Thinking, Fast and Slow, Farrar, Straus and Giroux (2011)
Philip Zimbardo and John Boyd, "Putting Time in Perspective: A Valid, Reliable Individual-Differences Metric", Journal of Personality and Social Psychology 77(6) (1999)
Jeffrey M. Bale, "Political Paranoia v. Political Realism: On Distinguishing Between Bogus Conspiracy Theories and Genuine Conspiratorial Politics", Patterns of Prejudice 41(1) (2007)
Frequently asked questions
What are futures fallacies? Recurring errors in reasoning about the future. They differ from general cognitive biases in that they concern the specific act of thinking about what has not yet happened. The standard taxonomy of ten was set out by Ivana Milojević in the Journal of Futures Studies in 2021.
Who identified the futures fallacies? Ivana Milojević named the set of ten. The first three, linear projection, ceteris paribus and arrival, came from Adam Dorr in 2016. Several of the individual effects have longer histories in psychology and economics, notably the planning fallacy from Kahneman and Tversky, and Bent Flyvbjerg's work on why large projects overrun.
What is the linear projection fallacy? The error of presuming that future change will be a simple, steady extension of past trends. It assumes both that the current rate of change persists and that no discontinuity interrupts it.
What is the difference between a futures fallacy and a cognitive bias? A bias is a systematic tendency in judgement. A fallacy is a fault in the structure of an argument. The two interact: present bias, for instance, makes the future negation fallacy much easier to commit.
Is the arrival fallacy the same as the one in psychology? No. In futures studies it means treating a future as a static destination instead of a moment in a continuing process. Tal Ben-Shahar's arrival fallacy, from psychology, is the illusion that achieving a goal will produce lasting happiness. Two concepts sharing a name.
How do you overcome futures fallacies? Mostly by procedure, since awareness alone does little. Pair every trend with its breaking condition. Write down what is being held constant. Ask what happens after each scenario. Take the outside view on estimates and build adaptability in from the start. Replace "will" with conditional language. Separate what you influence from what you can only respond to. Source scanning material from outside the group's usual reading. And require people to place themselves concretely inside a scenario.
