Metacognition is often reduced to “thinking about thinking”, but its practical core is monitoring and control. Do I actually understand what I have just read? When practising piano, am I hearing the music or merely remembering movements? After writing an argument, can I tell where it is still weak? These are metacognitive questions.
Metacognition is not the same as knowledge. A person may know a great deal yet judge their own understanding poorly. Someone with more modest ability may notice errors earlier and adjust more effectively. Research commonly distinguishes judgements about one’s own cognitive state from the control decisions made on the basis of those judgements.
Its value therefore lies less in endless self-reflection than in building a reliable feedback loop. Monitoring can itself be inaccurate, so reflection is not automatically wisdom. It becomes useful when our judgement about our own thinking can be corrected by what actually happens.
Sources:
https://pmc.ncbi.nlm.nih.gov/articles/PMC8187395/
https://pmc.ncbi.nlm.nih.gov/articles/PMC3366894/
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