The Player's Selective Memory: When You Only Remember Wins (and forget the rest)

In everyday life, and even more so in the world of gambling, our mind is a master at creating illusions, often without our knowledge. One of these, subtle and powerful, is confirmation bias. It is not an exception, but an almost universal rule of our way of thinking. This psychological mechanism leads us to favor, seek, interpret, and remember information that confirms our pre-existing beliefs, while ignoring or downplaying that which contradicts them.

🔎 Confirmation Bias: An Invisible Filter

Imagine you've decided that Tuesday is your lucky day. If you win a small amount gambling on a Tuesday, that win is imprinted in your mind as irrefutable proof of your "theory." But what happens when you lose? Most likely, Tuesday's loss will soon be forgotten, attributed to an "exception" or an "atypical Tuesday." This is confirmation bias in action. Our mind acts as a selective filter, allowing through information that supports our hypotheses and blocking, or at least blurring, that which disproves them.

In the context of gambling, this bias can manifest in several ways:

• Remembering only significant wins: "See, my strategy works! The other night I won X euros!" (forgetting the ten previous times the same strategy led to losses).
• Interpreting ambiguous results as confirmations: A near-win can be seen as proof that one was "close" to success, fueling the belief that the strategy is still valid.
• Seeking information that supports one's beliefs: Reading articles or listening to success stories that reinforce the idea that a certain gambling method is effective, ignoring statistical data or negative testimonials.

🧠 Why Does Our Mind Work This Way?

The human brain is an extraordinary machine, but not infallible. Confirmation bias has deep roots in our evolution. It helped us make quick decisions in dangerous situations, relying on established patterns. However, in complex contexts like gambling, where chance reigns supreme, this mechanism can be extremely counterproductive.

It is easier and less tiring for our mind to process information that aligns with what we already believe. Confronting data that contradicts our convictions requires greater cognitive effort, a critical analysis that we often prefer to avoid. We want to be right, and confirmation bias offers us the reassuring feeling of being so.

🃏 Gambling and the Illusion of Control

In gambling, confirmation bias often merges with another psychological mechanism: the illusion of control. Many players tend to believe they can influence the outcome of random events through:

• Rituals: A good luck charm, a gesture before playing, a specific way of placing a bet.
• Systems or "methods": Beliefs in the existence of sequences, "hot" or "cold" numbers (despite the probability of each event being independent of previous ones).
• Intuitions: The feeling of having a "sixth sense" that will guide them to a win.

When one of these "methods" seems to work, even by pure chance, confirmation bias reinforces it. That single win, perhaps after countless failed attempts, is elevated to irrefutable proof, while losses are rationalized or simply forgotten.

Consider an example. A player might have a "method" that suggests always betting on a certain number.

• If that number comes out, their memory will record "the method works!".
• If it doesn't come out, that play will be filed as "unlucky," "it went wrong once," or simply removed from conscious memory.

The probability that a specific number will come out in a game like Lotto is always the same, regardless of previous draws. For example, the probability that a number $X$ will come out on a wheel is $\frac{1}{90}$ for each single draw (simplifying, ignoring the order of the other numbers drawn and considering only one of five). Each draw is an independent event. But our mind, influenced by confirmation bias, seeks patterns and connections where none exist, constructing a narrative that fuels hope and illusion.

💡 How to Recognize and Mitigate Confirmation Bias

Being aware of confirmation bias is the first step to mitigating its effects. We cannot eliminate it entirely, but we can learn to recognize it and question our own beliefs.

Here are some practical suggestions:

• Keep an honest record: Write down all your plays, wins, and losses, without filtering. This will help you compare your perception with the reality of the facts.
• Actively seek disconfirming evidence: When you have a belief, try to find information that disproves it. Not just that which confirms it.
• Remember randomness: In gambling, most events are governed by chance. Probability has no memory. If you've flipped a coin 10 times and it always came up heads, the probability of it coming up heads on the next flip is still $0.5$ (or $50\%$).
• Question your "intuitions": They are often the result of an illusion.

Confirmation bias is not a moral weakness, but a characteristic of our brain. By understanding it, we can make more conscious choices and, in the context of gambling, get closer to the reality of probabilities, rather than a comforting but costly illusion.

Gambling can cause pathological addiction. Play responsibly. 18+ ADM.