What the thing is
Critical thinking is a disciplined process of analysing facts, evidence, arguments, and observations to reach sound conclusions. It is not intuition. It is not opinion. It is not open-mindedness alone.
Where it came from
Its practice began in Socratic dialogue in 5th–4th c. BC Ancient Greece. The phrase ‘critical thinking’ appears later — traced to John Dewey’s use of ‘reflective thinking’. It was systematised as a teachable competency in the 20th century.
What it gets right
It names a real cognitive discipline: self-directed, self-corrective reasoning that confronts assumptions, tests justifications, and resists egocentrism and sociocentrism. It treats judgment as earned, not intuitive.
What it gets wrong
It presumes universality while depending entirely on the individual’s knowledge base. A person cannot think critically about what they do not know — yet the framework rarely specifies which knowledge matters, or how it is acquired.
Why it matters now
Because misinformation spreads faster than verification. Because platforms reward reaction over reflection. Because critical thinking is not automatic — and without induction, ownership, and training, it remains rare, not routine.
Is it worth your time
Yes — if you are willing to do the work. Critical thinking is not a shortcut. It demands sustained effort, self-awareness, and knowledge. It offers no guarantees, only better questions.