The Sunk Cost Trap: Why Do We Keep Throwing Money at a Losing Game?

Have you ever found yourself in a situation like this? You do not want to go to a concert anymore, but you still go because you think, "I should not let the ticket money go to waste." Or maybe you stay in a relationship that has made you unhappy for years because you think, "Would all those years be for nothing?" Perhaps your startup is collapsing, yet you keep pouring money into it because you say to yourself, "I have already spent so much on this."

In economics and psychology, this is called the "sunk cost fallacy," also known as the "Concorde Fallacy." And it takes its name from one of the most expensive mistakes in human history.

The Luxury Disaster Of The Skies

The story of Concorde, which could be called the luxury disaster of the skies, begins in the early 1960s. Britain and France had recovered after the Second World War and had entered a new prestige race. Their goal was extremely ambitious: to build a supersonic, ultra-luxury passenger aircraft. This joint venture was named Concorde to symbolize cooperation itself; the word means harmony and agreement.

In fact, the process had started even earlier with a committee established in 1956. Hundreds of engineers worked on it, millions of hours of labor were spent, the prototype was ready in 1962, and the first flight took place in 1969.

But the harsh realities had appeared from the very beginning. Concorde’s fuel consumption was astronomical; it used about four to five times as much fuel as a normal passenger aircraft. Its passenger capacity was also extremely low; while a Boeing 747 could carry more than four hundred passengers, Concorde could take only one hundred. Its noise level was another major problem; because of the sonic boom it created, many countries banned its flights. On top of that, the economic picture was disastrous. Even though ticket prices were around twenty times higher than those of regular planes, the project still could not make a profit.

But It Could Not Be Abandoned

Even during the first test flights, it was obvious that the project was failing. Experts were raising alarms, and the numbers showed that profitability was impossible. But neither Britain nor France could step back.

Why? Because they had already spent too much money. Millions of pounds, millions of francs. So much labor, so much prestige. The thought of "If we back out now, everyone will see us as a failure" gripped both governments. The result? Money kept being poured into the project. Commercial flights began in 1976. It operated at a loss for 27 years.

The Tragic End

July 25, 2000. Paris. Air France Flight 4590, a Concorde, caught fire and crashed after a tire burst during takeoff. 113 people lost their lives.

That crash marked the end of a project that had already failed economically. In 2003, Concorde was permanently retired. The total cost? Around 20 billion dollars in today’s value. So what does this have to do with us? The story of Concorde is not just about a failed engineering project. It exposes one of the most basic distortions in human nature: "The more we invest in something, the harder it becomes to walk away from it, even when we know it is harmful."

We Live This Fallacy Every Day

In truth, we experience this fallacy every day. In business life, we keep funding a project that is clearly failing simply because "we have already put so much effort into it." We continue with a strategy that does not work because we have already spent too much time on it. We try to keep a sinking startup alive because we think, "We have already invested too much."

The same thing happens in relationships. People stay in unhappy relationships because they think, "We were together for five years, if I leave now, all of that will have been for nothing." A toxic friendship can continue solely for the sake of the past. Even in an environment where they are not valued, people may keep working because they think, "I have already given too much to this place."

It is no different in daily life. We sit through a boring movie because "I should not waste the ticket money." We finish a meal we do not like simply because we paid for it. We keep paying for a subscription we never use because "If I cancel it, I will not get my money back anyway."

Why Do We Fall Into This Trap?

Why do we fall into this trap? Because the human brain hates losses. As Daniel Kahneman, one of the most important names in behavioral economics, showed, the pain of losing something is roughly twice as strong as the pleasure of gaining the same thing. That is why people often continue making bad decisions with the thought, "At least let what I have already spent not go to waste."

But money, time, and effort spent in the past do not come back. That is exactly why they are called "sunk costs," because those costs have already sunk. Rational decision-making requires looking not at what we have already spent, but at what we stand to gain or lose from this point forward.

How Do You Escape The Sunk Cost Trap?

The first condition for escaping the sunk cost trap is accepting that the money, time, and effort you spent in the past are not coming back. You should not make the decision based on "Let all of this not go to waste," but based on what is left in your hands today and what will happen from now on.

Ask yourself this question honestly: If I were starting from zero today, would I still choose this? If the answer is no, then continuing just because of past investment is not rational. And continuing is not cost-free either; it pulls you away from new opportunities, better alternatives, and healthier decisions.

That is why seeing quitting as automatic failure is a mistake. Sometimes the smartest move is to stop before the damage grows.

If you are struggling to decide, you do not have to make a dramatic break immediately. Create a little distance and step back for a while. Very often, only after stepping away can a person clearly see whether they truly want to continue.

Conclusion

In the end, the real issue is being able to look at the future rather than the past. Concorde’s engineers truly built a remarkable aircraft, but that alone did not mean it was rational to keep operating it. The effort you gave in the past is certainly valuable too, but that does not mean you should sacrifice your future to it.

Remember: sunk costs are already sunk; you cannot change the past, but you can still change the future.

Sometimes walking away is the bravest decision. And the best way to protect your investment is not to keep pouring more money into the wrong place. The next time you catch yourself saying, "But I have already put so much into this," remember Concorde and ask yourself: "Am I flying a Concorde in my own sky?"