Does having a higher IQ than Einstein guarantee success?

Nishi Uggalle, winner of Channel 4’s Child Genius show, got the highest possible score in a Mensa test, but psychologists differ on whether such tests are reliable

Twelve-year-old Nishi Uggalle, the newly crowned champion of Channel 4’s Child Genius show, is said to have an IQ “higher than Einstein’s”. It sounds impressive, and well done to Nishi for winning what is in effect a junior Mastermind programme, but does that comparison actually mean anything and how seriously should we take IQ (intelligence quotient) as a measurement of intellectual capacity?

The immediate problem is that no one knows what Einstein’s IQ was, as he was never tested. It is assumed he would have an IQ score of 160+, which is reckoned to equate with genius level. When Nisha was tested almost three years ago by Mensa, a membership organisation for people with very high IQs, she scored 162 – the highest possible score in the test she was taking, though other tests can yield higher scores and IQs of above 200 have been claimed.

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Source: theguardian
Does having a higher IQ than Einstein guarantee success?