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Cognitive Bias in Martial Arts: Why Even Good Martial Artists Can Be Wrong
By Sifu Restita DeJesus
Martial artists often pride themselves on discipline, honesty, and the pursuit of truth. We spend years refining techniques, correcting mistakes, and testing our abilities. Ironically, one of the greatest obstacles to improvement isn't a lack of physical skill—it's something happening inside our own minds.
That obstacle is cognitive bias.
Cognitive bias refers to the mental shortcuts our brains use to make decisions quickly. While these shortcuts are useful in everyday life, they can also distort how we interpret evidence, evaluate training, judge other martial arts, and even assess our own abilities.
Understanding cognitive bias doesn't make us weaker. It makes us more objective, more adaptable, and ultimately better martial artists.
The Martial Artist's Blind Spot
Every martial artist has opinions.
"This style is superior."
"That technique would never work."
"Our lineage is the most authentic."
"I know this works because I've done it for thirty years."
Experience certainly matters—but experience alone doesn't make someone immune to bias.
In fact, the more invested we become in a particular system, instructor, or philosophy, the harder it can be to recognize when our own thinking has become selective.
The best martial artists aren't those who never make mistakes.
They're the ones willing to discover that they've been wrong.
Confirmation Bias
Perhaps the most common cognitive bias in martial arts is confirmation bias.
This is our tendency to notice evidence that supports what we already believe while ignoring evidence that contradicts it.
Imagine someone convinced that their style contains the "best" self-defense techniques.
When they see videos where those techniques succeed, they proudly share them.
When they see failures, they dismiss them:
- "The practitioner wasn't trained well."
- "That wasn't real."
- "Our version is different."
- "The opponent cheated."
Notice what happens.
Every success confirms the belief.
Every failure gets explained away.
The belief never has to change.
The Dunning-Kruger Effect
Another common bias is the Dunning-Kruger Effect.
People with limited knowledge often overestimate their understanding because they don't yet know what they don't know.
Martial arts social media has amplified this dramatically.
Someone may attend a seminar, watch twenty YouTube videos, spar for a few months, and suddenly begin declaring entire martial arts systems "useless."
Ironically, experienced instructors often sound less certain.
Why?
Because deeper knowledge reveals complexity.
The more you learn, the more you realize how much remains to be learned.
Survivorship Bias
We often remember spectacular successes while forgetting the many unseen failures.
For example:
"I knocked someone out once using this technique."
That's impressive. But how many times did it fail? How many variables existed? How many other techniques were attempted first?
Judging a system solely by its highlight reel is like judging a baseball player only by home run compilations.
You never see the strikeouts.
Authority Bias
Many martial artists assume something must be true because a famous master said it.
Respect for instructors is an important part of martial arts culture. Blind acceptance is not. Even legendary instructors disagree with one another.
Many great pioneers changed their methods throughout their lives after discovering better ways of doing things.
If the masters continued learning...Why shouldn't we?
The Sunk Cost Fallacy
Imagine spending twenty years practicing a particular method.
Someone presents compelling evidence that another approach solves certain problems more effectively.
Accepting that evidence may feel uncomfortable because it seems to diminish decades of work.
Instead, people often reject new information—not because it's wrong—but because admitting it would be emotionally expensive.
Time invested should never become a prison.
Your previous training isn't wasted if it becomes the foundation for continued growth.
Tribalism in Martial Arts
Humans naturally form tribes.
Karate.
Kung Fu.
Kajukenbo.
Brazilian Jiu-Jitsu.
Muay Thai.
Krav Maga.
Eskrima.
Etc.
The problem isn't belonging to a tribe.
The problem begins when loyalty replaces objectivity.
Suddenly every success by your group proves superiority.
Every success by another group becomes an exception.
Healthy pride becomes unhealthy certainty.
Social Media Makes Bias Worse
Algorithms reward confidence more than nuance.
Statements like:
"This is one hundred percent wrong."
"This technique never works."
"This style is fake."
...generate more engagement than:
"It depends."
"There are contexts where this works."
"Let's examine the variables."
Unfortunately, certainty often sounds more convincing than accuracy.
The loudest voice isn't always the wisest one.
Pressure Testing Without Ego
Good martial arts training should include opportunities to challenge assumptions.
Ask questions like:
- Can this technique work against resistance?
- Under what circumstances does it fail?
- What adjustments improve success?
- Does this apply equally to different body types, ages, and skill levels?
- What happens if my opponent doesn't cooperate?
Testing should be viewed as learning—not as an attack on tradition.
A technique that survives honest testing becomes stronger.
Intellectual Humility Is a Martial Skill
One of the highest levels of martial arts isn't physical.
It's intellectual.
Being able to say:
"I was wrong."
"I hadn't considered that."
"That's a good point."
"I need to learn more."
Those aren't signs of weakness.
They're signs of confidence.
A fragile ego protects beliefs.
A strong martial artist tests them.
Final Thoughts
The goal of martial arts has never been to prove we're always right.
The goal is continual improvement.
Cognitive biases affect beginners, instructors, grandmasters, and world champions alike. None of us are exempt.
The question isn't whether we have biases. The question is whether we're willing to recognize them.
The next time you evaluate a technique, criticize another style, or defend your own, pause for a moment and ask yourself:
"Am I seeing reality... or am I simply seeing what I expected to see?"
That single question may improve your martial arts more than another thousand repetitions of the same technique.
