Claims about exceptionally
high IQ scores often circulate online, but interpreting them requires more than comparing numbers.
IQ tests use different scoring systems, and historical childhood scores may not be directly comparable with results from modern assessments. Some figures are reported estimates rather than independently verified measurements.

A more useful discussion considers what the tests measure, how scores are obtained, and how intellectual achievements differ across disciplines.
The Campus Review's guide explores the topic and explains why the idea of a single, definitive highest-IQ holder needs careful examination.
Read more:
https://thecampusreview.com/stem/highest-iq-in-the-world/