Critical thinking

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We assume you have read: Concepts of Formal Logic and Concepts of Informal Logic

Definition

Critical thinking is the skill (and the attitude) of questioning, analyzing, and evaluating in an active and rigorous way the claims, arguments, evidence, and conclusions that reach us, instead of simply accepting information as it is presented. It is the practical application of informal logic to navigate the real world.

It is not being “critical” in the sense of criticizing for the sake of criticizing or being negative. It is being intellectually honest, skeptical but not cynical, and requiring that beliefs be well justified.

Rational and reflective process: It involves examining ideas, evidence, and arguments with objectivity.
Not accepting information at face value: What is heard or read is questioned, seeking solid foundations.
Oriented toward truth and justice: It seeks to distinguish what is fair, true, and reasonable in a context.

The 7 pillars of critical thinking (most accepted model today)

Pillar	What it means in practice	Key question you ask yourself
1. Clarity	Is exactly what is being said understood?	Could you explain it in your own words?
2. Precision	Is it exact? Are there concrete data or only vague statements?	Can you give numbers, dates, concrete sources?
3. Accuracy / Truthfulness	Is what is claimed true?	How do you know it is true? What evidence is there?
4. Relevance	Does the information or argument contribute to the topic, or are they distractions?	Does this really have to do with the conclusion?
5. Depth	Are the real complications being addressed, or does it stay on the surface?	What difficult or counterintuitive aspects are being ignored?
6. Breadth	Are other points of view being considered, or only one?	What would someone who thinks completely differently say?
7. Logic / Coherence	Does the conclusion follow from the premises? Are there fallacies?	If I accept these reasons, is the conclusion inevitable, or is there a leap?

Concrete skills that critical thinking develops

Identifying the real argument within a long text or speech (it is often hidden or camouflaged).
Distinguishing fact from opinion, evidence from interpretation.
Detecting biases (one’s own and others’): confirmation, availability, anchoring, halo effect, etc.
Evaluating the quality of sources (real authority, conflict of interest, methodology, peer review).
Recognizing and naming fallacies (what we saw earlier).
Asking Socratic questions (what exactly does it mean?, why do you believe it?, what would happen if…?, are there counterexamples?).
Changing your mind when better evidence appears (this is perhaps the hardest and the most important).

Main biases against critical thinking

Critical thinking is often hindered by cognitive biases and psychological factors. Recognizing these biases is crucial:

Confirmation Bias: The tendency to seek, interpret, favor, and remember information that confirms or supports one’s preexisting beliefs or values.
Groupthink: The pressure to conform to the opinions of a group, suppressing individual critical ideas in order to maintain harmony.
Availability Bias: The tendency to judge the probability of events by how easily examples come to mind (for example, fearing a plane crash more than a car accident, because plane crashes are more dramatic in the news).
Cognitive dissonance:
- When someone defends a failed idea to avoid the discomfort of admitting a mistake.

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Categories: Home -> Philosophy -> Logic

Last updated: 2025-12-08

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