You’ve seen it.
Someone with less experience… less intelligence… less capability …outperforms someone who should win.
It’s frustrating. It doesn’t make logical sense.
But it’s not about skill.
It’s about certainty.
The Hidden Driver
Belief → Biology → Behaviour
Most people still think success is driven only by strategy, intelligence, resources
These matter a lot. But they’re not the deciding factor.
Research across neuroscience and performance psychology shows something more fundamental:
Your brain does not operate on truth. It operates on what feels certain.
Certainty is not intellectual. It is biological.
When you believe something deeply, your brain reduces threat signals (amygdala downregulates), cortisol decreases, dopamine increases (motivation, reward-seeking), prefrontal cortex becomes more active (decision quality, creativity)
In simple terms:
Belief regulates your nervous system. Your nervous system determines your performance.
Why the optimistic and sometime less skilled person wins
Optimistic people often act faster, take more risks, recover quicker from failure, stay consistent longer
Why?
Because they are not constantly negotiating with themselves.
They feel certain.
Meanwhile, driven people who want to achieve more and create more impact often:
- Overanalyse
- Hesitate
- Second-guess decisions
- Carry invisible pressure
Not because they lack ability……but because they lack aligned certainty.
Beliefs are built. Beliefs are not truths. They are constructed from reference experiences or emotionally charged imagination.
Your brain builds beliefs from:
- Past experiences
- Emotional intensity (pain or pleasure)
- Repetition
- Social conditioning
- imagination
The more emotion + repetition, the stronger the belief.
This is why:
- One failure can create “I’m not good enough”
- One success can create “I can figure anything out”
Same reality. Different meaning. Different identity.
Your Brain Doesn’t Care If It’s Real
Here’s where it gets interesting.
From a neuroscience perspective:
The brain struggles to distinguish between vivid imagination and real experience.
When something is imagined with enough emotional intensity:
- The nervous system encodes it as a reference
- It influences behaviour as if it actually happened
This is why:
- Athletes mentally rehearse performance
- Leaders visualise outcomes
- High performers “decide” before evidence exists
They are installing certainty before results.
The Dangerous Belief: “I Need More…”
One of the most limiting patterns I see in leaders:
“I need more clarity, more time, more confidence… before I move.”
This is backwards.
Confidence is not built before action.
It is built through reference experiences created by action.
And here’s the trap:
If your current references are: failure, pressure, stress, comparison
You will unconsciously reinforce hesitation.
What Actually Changes Performance – If you want to shift results, don’t start with strategy.
Start here:
1. Audit Your “Reference System”
What are you using as proof?
- Past failures?
- Other people’s success?
- Worst-case scenarios?
Your brain is constantly asking:
“What do I know to be true?”
You are answering that question, whether consciously or not.
2. Create New Emotional References
Not intellectual ones.
Emotional.
This is where most coaching fails.
You don’t change beliefs by thinking differently. You change them by experiencing something differently. That is why we have a massive focus on your own experience or emotional shift.
Examples:
- Controlled discomfort (ice bath, breath-work)
- High-pressure decision simulations
- Embodied visualisation, the right meditation type and more…
These shift state → chemistry → perception.
3. Install Certainty Before Evidence
This is the uncomfortable part.
Every breakthrough comes from acting without full proof.
Historically, I am sure you know this story of Roger Bannister. No one ran a 4-minute mile… until he did, then suddenly, many could
Why?
Because belief expanded what was possible.
The Core Question
Not:
“Is this belief true?”
But:
“Is this belief strengthening me or weakening me?”
Because you can find evidence for almost anything.
The question is: What are you choosing to reinforce?
High performance is about identity-level certainty.
And certainty is built.
Deliberately.
If this resonates, here’s something to reflect on:
Where in your life are you:
- Highly capable… but hesitating?
- Overqualified… but underperforming?
- Waiting… instead of creating?
That gap…
is not a skill gap.
It’s a belief gap.
Hope you enjoyed reading
Alex Terrey
alex@thementoringeffect.com
