The Bias Library

I have reasons, you have personality flaws

"My behaviour is situational and complex. Yours is obviously just who you are as a person."

What looks good must be good

"Beauty isn't just skin deep—it's a full cognitive override"

When in doubt, avoid it completely

"Why take a chance when you can just avoid making any decision at all?"

The first number you hear becomes your reality

"Why think when the first piece of information can do all the work for you?"

Important people must be right about everything

"If someone has authority in one area, they're obviously experts in all areas. Logic!"

Contradictory evidence makes me believe harder

"Your facts just prove how right I am. The more you argue, the more convinced I become."

Monkey see, monkey do... but make it intellectual

"Individual thinking is so last century. Why not let the crowd decide for you?"

Individual stories beat boring statistics every time

"Statistics are for other people. This specific case is obviously different."

Logic is optional if the conclusion matches my beliefs

"Why think critically when I can just check if the conclusion feels right?"

My beliefs are stronger than your evidence

"I've held this belief for years. I'm not changing now just because of 'facts.'"

Everyone else is biased, but not me

"I'm uniquely rational and objective. It's everyone else who has cognitive biases."

Everyone looks better with friends

"Individual photos are so harsh. Group photos make everyone mysteriously more attractive."

The grass is greener on the side I chose

"My decisions are always the best possible ones. Evidence to the contrary is clearly flawed."

Random patterns must mean something

"The universe is definitely sending me signs through random events. Coincidence is just lazy thinking."

My brain hurts when my beliefs contradict each other

"I'll just change my beliefs to match my behaviour. Much easier than changing my behaviour to match my beliefs."

The art of cherry-picking reality

"Why seek truth when you can just confirm what you already 'know'?"

New evidence is just a suggestion

"I'll update my beliefs, but very, very slowly. Like geological time slowly."

Once you know something, you forget what it's like not to know it

"This is so obvious! Why doesn't everyone understand what's clearly simple?"

Suddenly the expensive option looks reasonable

"I wasn't going to buy the premium version until you showed me the ridiculously overpriced deluxe version."

When all you have is a hammer, everything looks like a nail

"My profession has taught me to see the world correctly. Everyone else is just missing the obvious solution."

Peak confidence at minimum competence

"A little knowledge is a dangerous thing, but a lot of confidence in that little knowledge is catastrophic."

I'm obviously the main character in this story

"Group projects succeed because of my contributions. They fail because of everyone else's lack of contribution."

Future me will be much more rational

"When I'm calm, I can't imagine being angry. When I'm angry, I can't imagine being calm. Emotions are temporary, right?"

I'm finally done changing as a person

"I've changed so much in the past, but now I'm basically finished evolving. This is the final me."

My stuff is worth more because it's mine

"Once I own something, it magically becomes more valuable. Ownership is an enchantment spell."

I see what I expect to see

"Why let reality interfere with what I already know should happen?"

Everyone thinks like me... right?

"My opinions are obviously mainstream. Anyone who disagrees is clearly in a weird minority."

Something is always more interesting than nothing

"I notice what's there, not what's missing. Absence of evidence is just... absent."

This one thing determines my entire future happiness

"If I could just fix this one aspect of my life, everything would be perfect forever."

This generic description is definitely about me specifically

"This horoscope is eerily accurate! It's like they know my deepest secrets and personality traits."

Same facts, different feelings

"Why tell the truth plainly when you can spin it to your advantage?"

Suddenly I see this everywhere

"I never noticed this car model before, but now I see it on every street. Did everyone just buy one overnight?"

Objects have one job and one job only

"A hammer is for hammering. Using it to open a can would be ridiculous and against its fundamental nature."

They're late because they're lazy; I'm late because of traffic

"When I mess up, it's the situation. When you mess up, it's your character. Simple."

The dice must be due for a change

"The universe definitely keeps track of coin flips to ensure fairness. Basic cosmic justice."

Why remember when I can just Google it later?

"My brain is now just a search engine interface. Why waste memory space on facts?"

Team harmony is more important than being right

"Dissent is just negativity. Let's all agree this terrible idea is brilliant for the sake of unity."

Beautiful people must be smart, right?

"If you're good at one thing, you're obviously good at everything. Logic has never been simpler."

I'm overconfident about hard things and under-confident about easy things

"I'm definitely going to nail this impossible task, but I'll probably mess up this simple one somehow."

I act differently when I know I'm being watched

"My behaviour is completely natural and authentic... now that I know you're observing and measuring it."

I knew it all along... or did I?

"Predicting the past is surprisingly easy when you already know what happened."

One bad trait means everything is bad

"If I don't like how you dress, I probably won't like your personality either. Efficiency!"

Present me deserves everything, future me can deal with consequences

"Why wait for a bigger reward later when I can have a smaller one right now? Future me will understand."

One specific person's suffering matters more than statistical lives

"A million deaths is a statistic, but one death with a name and photo is a tragedy worth donating to."

I built it, therefore it's amazing

"Anything I partially create becomes a masterpiece. Sweat equity equals artistic value."

I can influence random events with my mind

"If I think really hard about it and use my lucky ritual, I can totally affect this coin flip."

Everyone can obviously tell what I'm thinking

"My poker face is terrible. Everyone definitely knows I'm bluffing... wait, they can't tell? Really?"

Seeing patterns where none exist

"Correlation definitely implies causation, especially when it confirms what I already believe."

This will definitely change everything forever

"When this happens, I'll be permanently happy/devastated. My emotional state will never recover/improve."

My people are obviously superior to your people

"We're not biased, we're just better. It's everyone else who has the problem."

Ignorance is bliss, knowledge is responsibility

"Why learn uncomfortable truths when I can just pretend everything is fine?"

More information is always better, even when it's useless

"I need to research this decision for 47 more hours before acting, even though I already have enough information."

Five people told me X, so it must be universally true

"I asked three friends and they all agreed, so this is basically a scientific consensus."

Good things happen to good people, right?

"If bad things happen to you, you probably deserved it. The universe is basically a cosmic judge."

I suffered for this, so it must be valuable

"The more painful it was to obtain, the more worthwhile it must be. Suffering equals value, obviously."

Smaller looks better when evaluated alone

"24 pieces of silverware sounds impressive until you see the 40-piece set right next to it."

Losing $100 hurts more than winning $100 feels good

"The fear of losing what you have is stronger than the joy of gaining something new. Economics meets anxiety."

Familiar equals good

"The more I see something, the more I like it. Repetition is the mother of affection."

My memory is perfectly accurate, except for all the false parts I added later

"I remember exactly what happened, plus all the extra details I learned about it afterwards."

I see reality objectively, everyone else is biased

"I'm the only one who sees things as they really are. Everyone else is blinded by their prejudices."

Bad news travels faster than good news in your brain

"One criticism cancels out ten compliments. Math has never been more depressing."

Unlikely events feel impossible, possible events feel certain

"Math is hard. Let's just go with our gut feeling about how likely things are."

Not doing something bad is better than doing something good that has risks

"I'd rather let someone die by doing nothing than risk saving them with an action that might fail."

Everything will be fine... probably

"Bad things happen to other people. Good things happen to me. Statistics are just suggestions."

If I can't see the problem, it doesn't exist

"My investment portfolio is like Schrödinger's cat - it's both fine and terrible until I check it."

They all look the same to me

"Our group has amazing diversity. Their group? They're basically clones."

Results matter more than the decision process

"Good outcome equals good decision. Bad outcome equals bad decision. Simple math."

They're not just different, they're inferior

"It's not enough that we're good. They have to be bad for us to feel really good about ourselves."

I'm right more often than statistics suggest I should be

"Confidence is its own evidence. If I feel certain, I must be correct."

That cloud definitely looks like Elvis

"The universe is constantly sending me signs through random patterns. That stain looks exactly like my grandmother!"

How it ended is how I remember the whole thing

"Why remember the entire experience when I can just focus on the most intense moment and the ending?"

Everything will probably go wrong

"I'm not pessimistic, I'm realistic about how terrible everything is going to be."

Believing it works makes it work

"This sugar pill will definitely cure me because the doctor said it would. Mind over matter!"

This time I'll definitely finish on schedule

"Past performance is no indicator of future results, especially when it comes to my time management."

I definitely needed this expensive thing I just bought

"This impulse purchase was actually a brilliant investment in my future happiness and productivity."

New and shiny equals better and necessary

"This revolutionary technology will solve all our problems and has absolutely no downsides worth considering."

Everyone thinks exactly like I do right now

"Since I love spicy food today, I'll definitely love it tomorrow and everyone else probably does too."

Tell me I can't do something and suddenly I really want to do it

"The fastest way to make me want something is to tell me I can't have it. Reverse psychology 101."

The last thing I heard is the most important

"Recent information is obviously more relevant. Why would I remember old news?"

If it looks like a duck, it must be a duck

"Why use actual statistics when stereotypes are so much faster?"

I have excellent self-control, so I can handle temptation

"I'm so disciplined that I can keep cookies in the house and definitely won't eat them all tonight."

Safety equipment makes me feel invincible

"I'm wearing a helmet, so I can definitely do this dangerous thing I wouldn't normally attempt."

I only want information that confirms what I already believe

"Why would I read opposing viewpoints when I can just read things that prove how right I already am?"

I see what I want to see

"Reality is optional. I prefer the customized version that matches my beliefs."

I'm successful because I'm great; I failed because of circumstances

"Success is obviously due to my brilliance. Failure? That's just bad luck."

New ideas are dangerous until they're obviously correct

"We've always done it this way. Innovation is just a fancy word for troublemaking."

My worth depends entirely on how I stack up against others

"I'm not happy unless I'm doing better than my neighbors, coworkers, and random strangers on social media."

I'll tell you what you want to hear

"Why be honest when I can be likable? Truth is less important than social approval."

Everyone is definitely watching and judging me

"I'm obviously the main character in everyone else's story. They're all thinking about my outfit."

Change is scary, let's just keep things as they are

"Why improve things when mediocrity is so comfortable?"

Throwing good money after bad, but philosophically

"I've come too far to quit now... even though 'too far' is actually nowhere."

This simple metric perfectly captures the complex reality

"Why measure actual success when we can just focus on this one number that's easy to track?"

We only hear success stories, not failure statistics

"Successful entrepreneurs dropped out of college, so dropping out guarantees success, right?"

Going faster always saves proportionally more time

"If I drive 60 mph instead of 30 mph, I'll save twice as much time on every trip. Math is simple!"

My behaviour is situational, yours reveals your true character

"When I'm late, it's because of traffic. When you're late, it's because you're disorganised and disrespectful."

One unit equals the right amount to consume

"This bag of chips is obviously one serving. The package wouldn't lie to me about appropriate portions."

The weird one stands out and sticks in memory

"I'll definitely remember the one item on this list that's highlighted in red. The rest? Probably not."

Familiar routes always seem shorter

"This route I take every day definitely takes less time than that unfamiliar road. I can feel it."

Eliminate one tiny risk completely rather than reduce overall risk significantly

"I prefer zero risk in one area to lower risk everywhere. Math is clearly optional in safety decisions."

If you win, I must be losing

"Life is basically a pie, and if you get a bigger slice, that automatically makes mine smaller."