Editing Modern flat Earth beliefs (section)

=== Prevalence ===
In 2020, it was reported that based on polling by Datafolha, 7% of Brazilians believed in a flat Earth.<ref>{{Cite web |last=Brazil |first=Rachel |date=2020-07-14 |title=Fighting flat-Earth theory |url=https://physicsworld.com/fighting-flat-earth-theory/ |access-date=2024-06-02 |website=Physics World |language=en-GB}}</ref> A 2018 YouGov poll found that around 4% of the population of the United States believed in flat Earth,<ref>{{Cite web |date=6 February 2018 |title=Do you believe that the world is round or flat? |url=https://today.yougov.com/opi/live_survey_results/6147e107-0a97-11e8-b216-d9ff14e72543/question/cecf46a6-0a97-11e8-bd7b-c532039a14a0/toplines/ |access-date=2024-06-02 |website=YouGov}}</ref> while the POLES 2021 Survey found around 10% of the United States population believed that the Earth is flat.<ref>{{Cite web |date=2022-04-21 |title=Conspiracy vs. Science: A Survey of U.S. Public Beliefs |url=https://carsey.unh.edu/publication/conspiracy-vs-science-survey-us-public-beliefs |access-date=2024-06-02 |website=Carsey School of Public Policy |language=en}}</ref> A 2019 YouGov survey found that around 3% of British people supported flat Earth.<ref>{{Cite web |title=Which science-based conspiracy theories do Britons believe? {{!}} YouGov |url=https://yougov.co.uk/politics/articles/22839-which-science-based-conspiracy-theories-do-britons |access-date=2024-06-02 |website=yougov.co.uk |language=en-gb}}</ref>