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How do you know your conclusion holds?

Cut through noise and misinformation, and uncover what the evidence really supports.

FactWise investigates the data, statistical reasoning and evidence behind important claims and conclusions — to clarify what holds up, what does not, and what remains uncertain.

How easily a claim can mislead

"50% MORE INTENSIVE CARE PATIENTS"

That headline ran at the start of the coronavirus crisis.
Urgent. Alarming. A 50% surge in ICU patients.

But look beyond the percentage: the absolute number had risen from 2 to 3 patients. Statistically correct the 50% math, yet the real-world impact was one additional person in intensive care.

This is how percentages on small numbers distort reality. An increase from 100 to 101 carries the same absolute difference, but reads as a modest 1%. While 2 to 3 reads as a dramatic 50%. Same math. Opposite impression.

The core problem: misrepresenting data, even unintentionally, distorts our picture of reality.

Numbers are neutral. The interpretation rarely is.

Luc Poelman, founder of FactWise, data and statistics consultant
Luc Poelman Founder, FactWise

Why it matters

Flawed data, weak analysis and questionable reasoning don’t just lead to wrong conclusions.
They lead to poor decisions, wasted resources, and misplaced confidence.

Misleading graph due to a cherry-picked time frame

The chart showed a crisis. The data didn't.

Context is everything.

Cherry-picked timeframes, truncated axes, omitted baselines — charts can tell stories the underlying data never intended. When visuals drive decisions, the framing matters as much as the numbers.

What this costs you:
Teams mobilised around a problem that didn’t exist — or missed one that did.

Data-driven decision-making versus an opinion-based approach

The opinions agreed. The data wasn't asked.

Consensus is not evidence.

When experience and assumption fill the gap that data should occupy, decisions feel confident but aren’t grounded. The root cause stays hidden. The same problems keep returning.

What this costs you:
Recurring issues, misdiagnosed causes, and solutions that don’t stick.

Unsubstantiated claims in the data study

The claim looked solid. The evidence wasn't.

Confidence isn’t validity.

Many findings presented as proven fail under scrutiny. Flawed study design, selective reporting, and statistical overreach are common, and rarely visible to the non-specialist eye.

What this costs you:
Decisions built on research that doesn’t hold up. Legally, commercially, or scientifically.

The signal looked real. It was just noise.

Not all variation is a signal.

Reacting to routine variation as if it were a meaningful signal creates unnecessary interventions, constant firefighting, and a team that loses trust in the data it’s supposed to rely on.

What this costs you:
Wasted time, eroded trust, and an organisation in permanent reaction mode.

FactWise Offering

Independent Data & Evidence Investigation

When an important problem remains unresolved or a conclusion needs to hold up, FactWise provides an independent examination of the underlying data, statistical thinking, reasoning and evidence.

FactWise looks beyond the headline number:

What do the data actually show?
Is the apparent change a real signal or routine variation?
Are the comparisons and statistical reasoning sound?
Are important assumptions or alternative explanations being overlooked?
Does the evidence genuinely support the conclusion?

The objective is not more analysis for its own sake.

It is to clarify what holds up, what does not, and what is still missing.

Explore the service

What clients say

“Luc combines expertise with a pragmatic mindset, making him a reliable partner for organisations seeking structure, clarity, and improvement. I can highly recommend his services.”

Filip Waem— Operations Manager, Industrial Manufacturing

“During our collaboration at Bekaert, Luc consistently demonstrated strong analytical skills, turning complex data into clear insights and enabling well-founded, objective decision-making.”

Patrick De Keyzer— Former SVP Technology Bekaert Steelcord

Masterclasses

Strengthen they way you read and reason with data.

FactWise masterclasses provide practical training in statistical thinking, variation, data interpretation and evidence-based problem solving.

Recent insights

Read here about my insights on how data can be helpful, but when misused or misinterpreted can be very harmful – for business, society and science.

Read the latest Insights
StatisticsStop chasing ghosts – Understanding routine variation in business metrics
27 May 2026

Stop chasing ghosts – Understanding routine variation in business metrics

Every week, organisations waste hours investigating KPI changes that are statistically meaningless A metric drops, meetings are called, root cause analyses start, and action plans are created. One week later,…

Discuss your case today

Ready to take action? Make sure to book your free 30-minute discovery call today.

Luc Poelman

Founder of FactWise

More than 25 years in quality management, operational excellence and Lean Six Sigma taught me one recurring lesson: having data does not automatically lead to accurate insights.

I repeatedly saw how easily data can be underused, misread or overinterpreted.

Reacting to natural process variation. Graphs that tell a story the numbers don’t support. Misread scorecards.

When a personal question led me deeper into the scientific literature on health claims, I encountered the same challenge: conflicting findings, results that did not always replicate, and statistical reasoning that deserved closer scrutiny.

That’s why I founded FactWise — to cut through noise and misinformation, and uncover what the facts and data really say.

I am particularly interested in unresolved questions, issues where the pieces do not form a convincing whole, and claims or conclusions that need to be trusted — or challenged.

Book a free call · Contact me

Let's talk about your case

Ready to turn data confusion into clear insights? Share your challenge and let’s find a solution together.

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We'll have a brief call or meeting to understand your specific needs.

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I'll create a custom approach to solve your data challenges.
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