Card 03

🔍 ✅ 🚫

Why do two people with opposite political views both feel that "the facts clearly support MY side"?

💭 Think About It

Same world. Same facts available. Completely opposite conclusions—and BOTH feel their view is obviously correct! How is this possible?

Why do opposite views both feel "clearly supported"?

🎯 Explain your thinking

Why did you choose this answer?

🔒 Start writing to unlock hints

You've identified CONFIRMATION BIAS—it operates at three levels:

🔍 SEARCH: We look for information supporting our view

🧠 INTERPRETATION: We interpret ambiguous evidence as supporting our view

💾 MEMORY: We remember confirming evidence better

Same facts, filtered three ways, opposite conclusions!

Confirmation bias FEELS like being reasonable!

😇 "I'm looking at evidence!" (Yes, but only confirming evidence.)

🧐 "I'm being logical!" (Yes, but starting from a biased premise.)

The bias is invisible to the person experiencing it—that's what makes it dangerous.

We're not neutral truth-seekers—we're lawyers defending existing beliefs:

✅ For beliefs we WANT: "Can I believe this?" (low bar)

❌ For beliefs we DON'T want: "Must I believe this?" (high bar)

Same brain, different standards!

Antidotes:

• ACTIVELY seek disconfirming evidence

• Ask "What would change my mind?"

• Steelman the opposition (make their BEST argument)

• Befriend smart people who disagree with you

You're right that different values can lead to different conclusions. But something else is happening too:

🤔 The puzzle: Both sides claim THE FACTS clearly support them.

📊 If it were just values: They'd agree on facts but disagree on what to do about them.

But they disagree on the facts themselves! Why?

CONFIRMATION BIAS: We filter information at three levels:

🔍 Search: Look for supporting evidence

🧠 Interpretation: Read ambiguous data as confirming

💾 Memory: Remember what confirms, forget what challenges

This happens BEFORE the values debate!

Both can be true:

✅ Values: Different priorities lead to different conclusions

✅ Confirmation bias: Each side sees filtered "facts" that support their values

Values trigger which facts we NOTICE and REMEMBER. It's a feedback loop!

Your nuanced view is valuable. To go further:

• Acknowledge values differences openly

• ALSO check for filtered facts on both sides

• Ask: "What would change my mind?"

• Steelman the other side's BEST argument

Interesting! You're confident one side has the facts right. Consider:

🤔 Question: How do you KNOW which side is right?

🔍 Notice: Both sides are EQUALLY confident they're right!

If certainty indicated correctness, they'd agree. But they don't. Why not?

CONFIRMATION BIAS explains how both feel they're clearly right:

🔍 Search: Each seeks evidence supporting their view

🧠 Interpretation: Each reads ambiguous data as confirming

💾 Memory: Each remembers what confirms, forgets what challenges

Both are looking at filtered "facts"!

Here's the uncomfortable truth:

😅 If you're sure one side is right: You might be on that side...

🧠 ...which means: YOUR confirmation bias may be operating!

We ALL have this bias. The question is: are you working to counter yours?

To check if you're filtering:

• Actively seek evidence AGAINST your view

• Ask: "What would change my mind?"

• Make the BEST case for the other side

• Notice if you hold different evidence standards for liked vs disliked beliefs

Confirmation bias! Both people seek, interpret, and remember information that supports their existing view—while dismissing contrary evidence.

How confirmation bias works:

• Biased search: We look for supporting evidence, not challenging evidence

• Biased interpretation: Ambiguous facts are read as supporting our view

• Biased memory: We remember confirming evidence better

Why it's invisible:

• It FEELS like being reasonable and evidence-based

• We ARE looking at evidence—just filtered evidence

Antidotes:

• Actively seek disconfirming evidence

• Ask: "What would change my mind?"

• Steelman opposing views

• Befriend smart people who disagree with you

🌈 Different Perspectives to Consider

Filtered Evidence Confirmation bias

We seek, interpret, and remember information that confirms what we already believe—making filtered facts feel like objective truth.

Different Values Priorities matter

Values differences are real—but confirmation bias also filters which "facts" each side sees, creating a feedback loop.

One Is Wrong Certainty isn't proof

Both sides feel equally certain they're right. If your certainty proves you're right, so does theirs—contradiction!

🤔 Which thinking lens(es) did you use?

Select all the lenses you used:

Learn more about the 7 Thinking Lenses →

👨‍👩‍👧 For Parents & Teachers

🌱 A Small Everyday Story

"See? The study proves I'm right!" said Asha.
"That same study proves I'M right!" said her brother.
Same study. Each found support for their view.
Each ignored the parts that challenged them.
Neither was lying.
Both were confirming.

See more guidance →

🧠 Thinking habits this builds:

Actively seeking evidence AGAINST your current beliefs
Noticing different standards for wanted vs unwanted conclusions
Understanding why intelligent people can reach opposite conclusions
Steelmanning opposing arguments rather than strawmanning

🌿 Behaviors you may notice (and reinforce):

"I should look for evidence against this" intentions
Asking "What would change my mind?"
Presenting the best version of opposing arguments
Noticing when they're applying different evidence standards

How to reinforce: When discussing beliefs, model actively seeking disconfirming evidence: "I believe X, so let me look for the best arguments AGAINST X." Praise intellectual honesty over being "right."

🔄 When ideas are still forming:

Some learners may conclude "everyone is equally biased, so all views are equally valid." Help them see that while EVERYONE has confirmation bias, SOME people work harder to counter it—and that effort matters.

Helpful response: "Everyone starts biased, but not everyone stays equally biased. Actively seeking disconfirming evidence moves you closer to truth. The effort matters."

🔬 If you want to go deeper:

Study the classic Wason selection task experiment
Explore "steel manning" vs "straw manning" in argumentation
Discuss how scientific peer review tries to counter confirmation bias

Key concepts (for adults): Confirmation bias, motivated reasoning, selective attention, biased assimilation, myside bias, belief perseverance, steel manning.