Why an Experienced Founder Sometimes Makes Worse Mistakes Than a Novice

Experience is usually considered insurance against poor decision-making. Entrepreneurs have already weathered cash flow gaps, bad hires, failed deals, and botched launches. They recognize familiar patterns quickly and don't waste time on basic errors.

However, it is precisely this experience that can sometimes make a mistake more costly. A novice at least knows that they don't understand the context. An experienced founder, conversely, may mistake the new for the familiar, conclude their search for answers too soon, and confidently lead the company in the wrong direction.

The problem is not with experience per se. The problem is that its value depends on the environment in which it was acquired.

When to Trust Your Intuition

In their collaborative work on intuitive expertise, psychologists Daniel Kahneman and Gary Klein reached an important conclusion: professional intuition can be both exceptional and flawed. For it to function effectively, two conditions must be met.

First, the environment must be sufficiently regular. Firefighters, emergency room doctors, or chess players frequently encounter similar situations where certain signs are genuinely linked to specific outcomes.

Second, one needs rapid and honest feedback. An individual must be able to see the consequences of a decision and understand exactly where they went wrong.

In such an environment, experience turns into the ability to spot patterns before others do. In an unstable environment, it can become a trap.

Entrepreneurship is often closer to the latter case. Markets change, products exist in new categories, and customers may say one thing but pay for another. The consequences of a strategy or hiring decision might not emerge for six months. In that time, competitors, the economy, the team, and the product itself may change. This results in a lot of experience but very little clear signal regarding what actually worked.

Success Is a Worse Teacher Than It Seems

Imagine a founder who has successfully launched B2B products three times through personal selling. On the fourth attempt, they double down on the same approach because "the market always buys through trust." But the new product is cheaper, the audience is different, and the decision-maker is not an executive, but an end-user. A strategy that worked in the past becomes a costly constraint.

An experienced person doesn't necessarily ignore data. They may genuinely believe they have already interpreted it correctly. This is the dangerous moment: past successes provide not just knowledge, but also a sense of certainty in one's own explanations.

Research on professional decision-making shows that the most common cognitive bias among specialists in various fields, including management and finance, is overconfidence in their own judgments. This is the conclusion of a review by Vincent Berthet. Competence does not cancel out biases; sometimes it makes them more convincing to the individual and the team.

This is especially noticeable among entrepreneurs. A 2022 meta-analysis shows that overconfidence in the entrepreneurial process is not limited to a single effect: it can help in acting amidst uncertainty, but it can also impair the assessment of risks and the quality of decisions. Therefore, the question is not "do you need confidence?" but rather "how verifiable is it?"

Old Patterns vs. New Markets

Experience creates mental models: "these types of clients always buy this way," "a hired CEO always slows down the company," "low conversion means weak marketing," "if a competitor raised a round, we must do the same."

Models are necessary. Without them, a founder wouldn't be able to make dozens of decisions a day. But they are dangerous when used as a ready-made answer rather than as a hypothesis.

A novice asks basic questions more often because they don't know the "correct" answer. An experienced founder risks skipping exactly these questions:

• What in this situation is truly similar to my past experience, and what is different?
• What data point would refute my hypothesis?
• Am I attributing a past success to circumstances that have already disappeared?
• Is there someone who sees the market differently and can point out a blind spot?

Good management experience does not mean "deciding quickly." It means knowing when a quick decision is justified and when one needs to pause and collect external signals.

The Curse of Knowledge

There is another problem: it is difficult for an expert to see through the eyes of someone who does not yet know the subject. Psychologists call this the "curse of knowledge." In a series of experiments from 2023, learning impaired participants' ability to accurately assess what novices knew.

For a founder, this happens constantly. They find a new interface intuitive because they have spent months discussing it with the team. The value of the product seems obvious to them because they know the entire logic behind the features. They expect autonomy from an employee where that employee lacks the necessary context.

As a result, an experienced entrepreneur may make a mistake not in their strategy, but in how they communicate it: the team does the wrong things, customers don't understand the offering, and the founder themselves attributes the failure to "poor execution."

How to Use Experience Without Becoming Its Hostage

Experience should not be discarded; it must be transformed from an answer into a verification tool.

Separate the familiar from the new. Before making a major decision, write down two lists: what is actually repeating from past experience and what conditions have changed. If the second list is longer, your intuition should only be treated as a first hypothesis.

Make predictions in numbers. Don't just say "sales should grow"; say "in eight weeks, the conversion rate will rise from 2% to 3%." This allows you to compare your confidence with reality rather than rationalizing it after the fact.

Conduct a pre-mortem. Imagine that a year from now the decision has failed, and ask: why? This technique forces the team to look for vulnerabilities rather than confirmation for their preferred version of events.

Seek disagreement before the decision, not after. The most useful person is not the one who argues with everything, but the one who knows a different segment, function, or client type well. An external viewpoint is especially important when a decision feels "too obvious."

Return to your decision log. Once a quarter, it is useful to look not just at the results, but at the initial logic: what you expected, what data you based it on, and where you overestimated your own knowledge. This is how experience begins to teach you rather than just accumulate.

Summary

A novice often makes mistakes due to a lack of knowledge. An experienced founder makes them due to an over-hasty confidence that their existing knowledge is still applicable.

A strong entrepreneur does not reject intuition. They understand its limits: they trust it in a familiar environment with rapid feedback and verify it where the market, product, or people have changed. Experience becomes an asset only when it can be revised.