IQ matters very little in the real world as long as your above 110 or so. IQ is an imperfect measure of intelligence. For one, IQ is determined by you Mental Age/Calculated age X 10 roughly (there's a little more at work in some tests). So this kid has the intelligence of a 12 year old which while very high doesn't necessarily make him a super genius like Einstein, because a 12 year old is still relatively unintelligent
However over the life of an individual you tend to get dumber by IQ standards because your calculated age is constantly going up, the gap between your mental age and calculated age tends to close overtime making you seem less intelligent overtime. Thats why your first IQ is typically higher than others you take later in life. IQ also fails to factor in such things as creativity and people with high IQ's typically like all individuals do not possess high intelligence in all areas.
That being said IQ is still relatively useful for determining if someone is competent to understand the ramifications of their actions and their ability to be influenced and is a good indication of intelligence. However, since this test was administered at such a young age I doubt the test is entirely accurate even though he is obviously very smart.
