Now that there has been a fair bit of debate about the particulars, how exactly would this IQ test be administered to the world, given that the majority of countries do not have English as their first language(in my case, it is my third language and I'm not sure I'd be very comfortable taking the IQ test in it) and there may be people with IQ high above 120 who still cannot speak English/not well enough for the test?
Also, in the event we were able to administer and monitor a test multi-lingually, would we eliminate those who show tendencies of a high IQ but have not had the basic training needed to answer some of the questions due to war, dictatorship etc?
Right now, the task of testing even the 4 (or so) billion people (this number excluding children or remote tribes) with the literacy skills necessary to answer the test seems daunting at best. Yet it would also seem necessary in order to achieve a complete 'reset' of humanity. And like I mentioned before, the disposal of all who failed would also take up resources and would most likely pollute.