Categories Antiwork Extremely rich people are not extremely smart. Study in Sweden finds income is related to intelligence up to about the 90th percentile in income. Above that level, differences in income are not related to cognitive ability. Post author By Olivia Post date February 4, 2023 No Comments on Extremely rich people are not extremely smart. Study in Sweden finds income is related to intelligence up to about the 90th percentile in income. Above that level, differences in income are not related to cognitive ability. ← unpaid internship abuse → Florida cannabis retailer Sunburn Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.