Given the world population there is zero reason to go to sigma 8. That’s more than 12000x the population of earth.

But, anyway. If the theoretical limit to IQ for the current population is 201 and a test even has the potential to give a result of 202 the test is defective. And people that make IQ tests have to know that because any result outside of theoretical limits is going to get them laughed out of town.

You mentioned Wikipedia earlier. The test that gave the 210 result is known to be defective.