DUNNING-KRUGER EFFECT
Why Incompetent People Think They're Experts
People with little knowledge overestimate their
competence, while experts underestimate theirs.
WHY IT HAPPENS:
Lack of knowledge prevents you from recognizing
what you don't know
REAL-LIFE EXAMPLES:
New gym-goers advise experienced lifters •
Experts doubt themselves.
Emotionally
unaware people think they're great partners
Confidence is highest when knowledge is lowest
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THE HALO EFFECT
One Good Trait Blinds You to Everything Else
If someone excels in one area, you assume they're
excellent in all areas.
REAL EXAMPLES:
Attractive people perceived as smarter & kinder
Successful entrepreneurs assumed to be great
parents. One red flag dismissed because they're charming
IN RELATIONSHIPS:
The halo effect is especially dangerous in romantic
relationships
One good quality doesn't erase other flaws
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SUNK COST FALLACY
Why You Stay in Bad Situations
You continue investing in something because you've
already invested so much (time, money, energy).
IN RELATIONSHIPS:
"I've been with them 5 years, I can't leave
now"
IN CAREER:
Staying in a job because you've invested so much
time
REAL IMPAСТ:
Keep you trapped Prevent forward movement
Cost years of happiness
Past investment shouldn't determine future
decisions-only future potential matters
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CONFIRMATION BIAS
The Bias: You Only See What You Want to See
You seek information that confirms your existing
beliefs while ignoring contradictory evidence.
REAL EXAMPLE:
If you believe someone is untrustworthy, you'll
notice their mistakes but ignore their kindness.
REAL-LIFE IMPACT:
Creates echo chambers Damages relationships. Limits
personal growth
Do you do this?
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ANCHORING BIAS
Why the First Number You Hear Sticks
The first piece of information you receive The
first piece of information you receive becomes a reference point, influencing
all future judgments.
REAL EXAMPLE:
IN RELATIONSHIPS:
First impressions anchor how you perceive someone
forever
Be aware of first anchors-they're powerful
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