I don't know if the distinction between a tested 150 and 180 IQ is meaningful, but that between those levels of intelligence is. I'm in the 150 range; I've met

I don't know if the distinction between a tested 150 and 180 IQ is meaningful, but that between those levels of intelligence is. I'm in the 150 range; I've met some who are probably in the 180 range (IMO gold medalists) and they are noticeably smarter than I am. That said, even a 200 IQ won't overcome a lackluster work ethic, mental illness, or social adversity (internal or external).