You're not indecisive. You've been handed a case with no file.
Why do vague tasks exhaust me before I even start?
The not-knowing may burn more fuel than the doing.
Short answer
Unclear tasks may tire people before the work starts; our hypothesis is that the mind keeps several possible versions of the job open at once. Lab studies show unpredictability raises stress responses, and difficulty tolerating uncertainty is linked with more anxiety symptoms. Asking early what good looks like and by when is a cheap test, and where the fog will not clear, a good-enough decision may cost less than one left pending.
Part of a bigger question: Why am I fine with emergencies but not constant uncertainty?
Someone sends you a message that says, roughly, can you handle the thing, and nothing else. No deadline. No detail. No sense of what done looks like. And you sit there, cursor blinking, and feel an exhaustion arrive that's wildly out of proportion to a task you haven't even started.
By the time you've figured out what they actually meant, you're spent, and the work itself is still untouched.
The case nobody assigned you
What you've quietly become, in that moment, is a detective. Not by choice. The instructions were vague, the doors were all left open, and so you started gathering clues. What did they mean by handle? Who else is involved? What happens if I get it wrong? You're reconstructing intentions from fragments, building a picture nobody handed you.
And the cruel part is that none of this looks like work. To anyone watching, including yourself, you're just sitting there. Stalling. Being slow. But you're running a full investigation, and investigations are expensive, even when the eventual answer turns out to be small.
Where the energy actually goes
We assume the hard part of any task is the doing. Often it isn't. The doing, once you know what you're doing, can be the easy stretch. The expensive part is the not-knowing that comes before it: holding every possibility open, rehearsing paths you might have to take, the quiet dread of choosing the wrong one.
Studies in the lab found that uncertainty works as a stressor in its own right. In one experiment where people learned which images predicted mild electric shocks, self-reported stress, pupil size and skin responses rose and fell with how unpredictable the shocks were. Moderate evidence That was shocks in a lab, not a vague message from your manager. Think of it like this: ambiguity makes your mind keep every door open at once, and an open door takes power to hold. Ten open doors, ten little drains running in the background all day. A Calmistry hypothesis, not a finding: that may be why you can finish a day having decided very little and still feel like you ran a marathon, standing still. Speculative
Why fog presses down so hard
Calmistry borrows a picture from materials, as a metaphor: stress as force over area, and clarity as part of the area. A clear task, even a big one, gives you solid ground to stand on while you carry it. An unclear one removes the ground, so you're holding the same weight with less underneath, bracing against questions instead of doing.
This is why, for some people, the label indecisive may miss. If you'd decide quickly once the picture were clear, the thing slowing you may be less a lack of nerve than a reluctance to choose badly inside a fog that won't lift. People differ here, too: a meta-analysis of 181 studies found that finding uncertainty hard to bear was moderately linked with symptoms of anxiety, obsessive compulsive disorder and depression. Moderate evidence Those are symptom measures, not a test of unclear tasks at work.
Widening the ground under a decision
Some of the fog you can clear with a single question. The thing that feels rude to ask, what does good look like here and by when, is usually the cheapest move available, and it collapses ten open doors into one. Ask it earlier than feels comfortable.
The fog you can't clear, you meet differently. Our model predicts that a decision made on decent information now often beats a perfect one still pending in a week, because the pending one keeps charging you rent while it waits. Set a floor: good enough, decided, moving. Writing down the specific next step may help too. In lab experiments, unfinished goals caused intrusive thoughts and poorer performance on other tasks, and making a specific plan for them removed those effects. Limited evidence That supports planning the next step; it does not show that deciding early reduces stress or fatigue about a vague task.
Try comparing. For the next five vague requests, send one clarifying question (what does good look like, by when) within the hour; for the next five, work it out alone. Note how long until you started and how drained you felt by evening, 0 to 10. If the clarified ones start sooner and drain less, the fog reading fits you. If they don't, the cost may lie in the work itself, or in who's asking.
Closing the doors
Go back to that blinking cursor and the message that told you nothing. You may not have been failing to be decisive. You may have been handed a case with no file and quietly footing the bill for the gap.
The move we'd test is almost unfair in its simplicity: ask the question that lifts the fog, and where it won't lift, decide anyway and let yourself stop investigating. Spend less on choosing, and you may find more left over for living.
If unclear work is a regular part of your week, the work uncertainty hub gathers what tends to help, and the Your work-stress material quiz maps how pressure lands for you at work.
A made decision often beats a perfect one still pending.
Keep investigating
Where this fits: the mechanism behind it, a material that responds differently, and the Field Guide it belongs to.
What the evidence can't tell you Lab studies of unpredictability use short controlled stressors; they cannot tell you how much of your tiredness comes from the missing information itself.
Take it further
Measures this touches
- How much it takes to move you (Stiffness) How strongly you hold to a set plan, route or expectation once it is in place, and how much changing it costs.
- What’s left afterwards (Residual stress) How much stays with you once a stressful moment is over, such as replayed conversations, unfinished business and leftover tension.
Claims and evidence
Each claim in this article, as an observed pattern, a plausible mechanism and the strength of the evidence.
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Observed in studies Moderate
- What studies found
- In a lab experiment, stress, pupil size and skin responses rose and fell with how unpredictable electric shocks were; a review proposed processes for responding to uncertain threat.
- One explanation
- One explanation is that the mind keeps preparing for several possible outcomes at once while things stay unresolved.
- What it does not show
- A shock-learning experiment and a theoretical review; neither studied vague tasks, work requests or fatigue.
- Evidence
- Several studies or a meta-analysis support it, with mixed sizes or open questions.
de Berker et al. 2016Lab experiment
- Conditions
- Learning which images predicted electric shocks
- Method
- Self-reported stress, pupil size, skin sweat response, cortisol and a learning model
- Observed
- Stress, pupil size and skin responses rose and fell with how unpredictable the shocks were, and closer tracking went with better task performance.
- Design
- Lab experiment
Computations of uncertainty mediate acute stress responses in humans. Nature Communications. doi:10.1038/ncomms10996
Grupe & Nitschke 2013Narrative review
- Conditions
- Uncertainty about possible future threat
- Method
- Review of brain and psychology research on anxiety
- Observed
- Set out five processes for responding to uncertain threat and proposed that changes in them may underlie clinical anxiety.
- Design
- Narrative review
Uncertainty and anticipation in anxiety: an integrated neurobiological and psychological perspective. Nature Reviews Neuroscience. doi:10.1038/nrn3524
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Observed in studies Moderate
- What studies found
- In a meta-analysis of 181 studies, intolerance of uncertainty was moderately linked with symptoms of anxiety disorders, OCD, depression and eating disorders; a separate study validated a short scale for it.
- One explanation
- One explanation is that intolerance of uncertainty makes ambiguous situations feel more threatening and keeps worry running until they resolve.
- What it does not show
- Correlational symptom studies; they do not show that clarifying a task reduces stress.
- Evidence
- Several studies or a meta-analysis support it, with mixed sizes or open questions.
Carleton, Norton & Asmundson 2007Cross-sectional study
- Who
- Two samples of undergraduate students
- Conditions
- Intolerance of uncertainty: finding it hard to live with not knowing
- Method
- Testing a 12-item short form of a 27-item questionnaire
- Observed
- The 12-item version held up well, matched the original closely, and split into an anxious part and an avoidance part.
- Design
- Cross-sectional study
Fearing the unknown: a short version of the Intolerance of Uncertainty Scale. Journal of Anxiety Disorders. doi:10.1016/j.janxdis.2006.03.014
McEvoy et al. 2019Meta-analysis
- Who
- 181 studies with 52,402 participants
- Conditions
- Intolerance of uncertainty and symptoms of several mental health conditions
- Method
- Pooled correlations, testing study design and measurement factors
- Observed
- Finding uncertainty hard to bear was moderately linked with symptoms of anxiety disorders, obsessive compulsive disorder, depression and eating disorders.
- Design
- Meta-analysis
The impact of methodological and measurement factors on transdiagnostic associations with intolerance of uncertainty: a meta-analysis. Clinical Psychology Review. doi:10.1016/j.cpr.2019.101778
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Observed in studies Limited
- What a few studies found
- In lab experiments, unfinished goals caused intrusive thoughts and poorer performance on other tasks, and making a specific plan removed these effects.
- One possible explanation
- One explanation is that a specific next step lets the mind stop rehearsing an open goal.
- What it does not show
- Lab goals and tasks; it did not test good-enough decisions or vague workplace requests.
- Evidence
- A few studies, often small or correlational. Plausible, not settled.
Masicampo & Baumeister 2011Lab experiment
- Who
- Participants across several studies
- Conditions
- Unfinished goals, with or without making a specific plan
- Method
- Intrusive thoughts, word accessibility and anagram performance
- Observed
- Unfinished goals caused intrusive thoughts and poorer performance on other tasks, and making a specific plan for them removed these effects.
- Design
- Lab experiment
Consider it done! Plan making can eliminate the cognitive effects of unfulfilled goals. Journal of Personality and Social Psychology. doi:10.1037/a0024192
Sources
- Carleton, Norton & Asmundson 2007. Fearing the unknown: a short version of the Intolerance of Uncertainty Scale. Journal of Anxiety Disorders. doi:10.1016/j.janxdis.2006.03.014
- de Berker et al. 2016. Computations of uncertainty mediate acute stress responses in humans. Nature Communications. doi:10.1038/ncomms10996
- Grupe & Nitschke 2013. Uncertainty and anticipation in anxiety: an integrated neurobiological and psychological perspective. Nature Reviews Neuroscience. doi:10.1038/nrn3524
- Masicampo & Baumeister 2011. Consider it done! Plan making can eliminate the cognitive effects of unfulfilled goals. Journal of Personality and Social Psychology. doi:10.1037/a0024192
- McEvoy et al. 2019. The impact of methodological and measurement factors on transdiagnostic associations with intolerance of uncertainty: a meta-analysis. Clinical Psychology Review. doi:10.1016/j.cpr.2019.101778
Compare two situations
Why am I fine with emergencies but not constant uncertainty?
Is it this situation, or a pattern you carry from place to place? See how the same response shows up somewhere else, then check whether it matches yours.
Or take the quiz (about 12 minutes): Your work-stress material You know what a task with no brief does to your energy. Does the same stall show up in other kinds of uncertainty?