Daniel Kahneman coined a powerful acronym for a common cognitive bias: WYSIATI, which stands for “What You See Is All There Is.” It describes our mind’s tendency to construct a coherent, confident story based only on the information immediately available to us, while neglecting the vast universe of information that is absent. In no area of business is this trap more dangerous than in mergers and acquisitions.
During due diligence, teams are flooded with information. They receive financial statements, customer lists, contracts, and operational data. The natural human tendency is to analyze this mountain of data exhaustively and, if it looks good, to feel confident in the decision. The deal team builds a coherent narrative of success based on what they have seen.
But the real, company-killing risks in an M&A deal often lie in what you don’t see. What is the true health of the company culture, and how will it clash with your own? What is the unspoken key-person risk tied to a single engineer who isn’t even on the executive team but is the only one who understands a critical piece of legacy code? What underlying customer satisfaction issues are being masked by long-term contracts that are not likely to be renewed? This missing information won’t appear in the data room.
A great financial advisor actively fights the WYSIATI bias. Their job is not just to analyze the provided information but to become obsessed with what is missing. They must constantly ask, “What have we not been shown? What questions have we not asked? If this deal were to fail spectacularly, what would be the most likely undiscovered reason?” This disciplined search for the unseen information is what separates a standard due diligence process from a truly insightful one. It’s the difference between simply validating a story and uncovering the truth.
The greatest risks are rarely in the data you have, but in the crucial information you don’t even know is missing. My work as a Fractional CFO in high-stakes situations like M&A is to actively hunt for that missing information. As an Executive Coach, I train leaders to fight this cognitive bias in their daily decisions. If you’re facing a major decision and want a second set of eyes to help you see what might be missing, feel free to send me a message.