"It'll get worse before it gets better" sounds like the voice of experience. It carries the weight of someone who has been through something difficult, held steady, and come out the other side. It's reassuring. It implies that the worsening you're observing is a sign that you're on the right path.

Sometimes it's true. Learning a difficult skill involves initial confusion before clarity. Building physical endurance involves soreness before strength. Some interventions have a genuine adjustment phase. In these cases, tolerating early deterioration is the correct response.

The fallacy is applying the same logic when the deterioration isn't a signal that anything is on course - it's just evidence that the current approach isn't working.

What It Is

The It Will Get Worse Before It Gets Better fallacy leads individuals to persist with ineffective actions because they interpret worsening conditions as a sign that eventual improvement is forthcoming.

The critical distinction: the fallacy doesn't say that conditions never worsen before improving. It describes the reasoning error of treating any deterioration as proof that improvement is coming - without evidence that the worsening is actually part of a legitimate recovery or growth process.

How the Mechanism Works

Two cognitive tendencies combine to produce the fallacy.

Causal narrative demand. The mind seeks coherent explanations for what is happening. When a situation worsens after an action has been taken, the natural response is to fit the observation into a story: the action was right, the worsening is a phase, better outcomes are ahead. This narrative is satisfying and reduces anxiety. It can also be wrong.

Optimism as interpretation. In ambiguous situations - where a course might be working or might not be - the optimistic reading gets privileged. Rather than treating deterioration as ambiguous evidence requiring reassessment, it gets assigned to the "worse before better" template, which converts evidence of failure into evidence of progress.

Together, they produce continued investment in a course that isn't working, prolonged by the very deterioration that should have prompted reassessment.

A Hypothetical to Recognise It

A software team adopts a new project management methodology after reading that the initial transition period involves disruption before productivity improves. Six weeks in, velocity is down, deadlines are being missed, and the team is frustrated. The manager holds the course: "This is expected - it always gets worse before it gets better."

At twelve weeks, the situation hasn't improved. The "worse before better" frame has now extended the disruption by six weeks and generated three missed product deadlines. A retrospective reveals the methodology was poorly matched to the team's workflow - not a temporary adjustment problem, but a structural mismatch that never would have resolved.

The prediction "worse before better" was technically unfalsifiable within the timebox the manager applied. Any deterioration confirmed the story. No criterion was set for when continued decline would count as evidence that the approach was wrong.

Why It Matters

This fallacy can cause delays in seeking effective treatment or intervention, potentially worsening outcomes.

In health contexts, interpreting escalating symptoms as "the treatment working" when they actually signal a need to reassess can delay critical care. In business, treating a declining strategy as being in its "necessary adjustment phase" can delay pivots that would have preserved resources and direction.

The dangerous version is when the phrase is offered by the person whose advice you're following - not as an honest assessment of a specific intervention's known side-effect profile, but as a general reassurance to forestall questioning. At that point, "it will get worse before it gets better" is not a description of the process; it's a way of exempting the advice from scrutiny.

The Common Misunderstanding

The most important thing to understand about this fallacy is that it doesn't mean early deterioration is never legitimate. Some processes - wound healing, physical conditioning, breaking old habits to build new ones - do involve genuine initial friction. The fallacy isn't believing in those processes.

The error is applying the "worse before better" template without specific evidence that the current situation is one of those processes. "All things that work go through a worse phase" is false. Many things that don't work also get worse, and stay worse, and never improve. The phrase is a prediction. It requires justification.

Real-Life Contexts

See It Will Get Worse Before It Gets Better Fallacy in everyday decisions

Pick a life context to see how this bias can show up outside the textbook.

The Prolonged Redesign

A team keeps tweaking a checkout flow, seeing each drop in completed purchases as a necessary dip before a breakthrough.

Illustrative scenario

Scenario

Alex looks after the checkout flow at a small online shop that sells handmade soap. After the first version of the new layout goes live, completed purchases fall from 62% to 48%. The team calls this the expected 'worse before better' phase and keeps adding tweaks-like a new gift-wrap option and a one-click reorder button-even though usability tests show shoppers get confused and abandon their carts. Over the next two months they keep pushing forward, each change bringing the completion rate down a bit more, yet they stay convinced a turnaround is just around the corner.

Where The Bias Enters

The worsening metric is fitted into the story that current pain must precede improvement, so the team discounts the test data and continues the same course.

Decision Check

If the completion rate is still below 50% after the next two sprints, would we still treat the redesign as a worthwhile investment?

This scenario is illustrative. It explains the pattern and does not claim a documented public case.

Sources

  • Dobelli, R. The Art of Thinking Clearly. Sceptre, 2013. (conceptual reference)