Yes, there are people out there who think the Earth is flat. And they’re having conventions:
Besides the absolutely dumb idea of a flat Earth and the dismissal of pretty much everything produced by the space program of a dozen countries, there’s something really interesting going on here. The flat Earther community is a really interesting case study^ when it comes to challenging the idea that “the Internet will make us smarter”.
It also shows a worrying connection between populism and disbelief in science. I’m all for emotions, but to demolish science in such a way brings thoughts of dystopia to my mind.