>>t is also possible that his IQ raised significantly as he got older due to extensive study as it is also possible that his IQ test was simply poorly administered for whatever reason.

Which is why an IQ is useless. If it can rise then it is not really measuring intelligence. Rather it is measuring what you know so far. Which explains why kids from better income families have better IQs.

And yet people treat IQ as a constant. Glad I decided never to let a single number define me. To all you that believe the IQ is important I say ...