Is flat earth promoted by mathematicians and scientists with PhDs from Princeton and Cambridge, and published in mainstream IEEE journals?
At any rate, you seem to be saying you have not read any of the relevant papers. I encourage you to look at least at one of the papers I mention (not just the criticisms others have written), and make up your own mind as to its validity. Most are free PDFs hosted online, and are not very long reads. The game of life paper is the most accessible, IMO. You can even reproduce the results yourself if you become interested enough. At that point, you'll be in a better position to dismiss the work.
Even though I agree with you on flat earth being a pseudoscience, I have at least read some of their arguments to see what they are claiming. Same with 9/11 truthers and holocaust denialists. I at least read their arguments, so I can debunk their arguments myself. There is always the possibility that some position I vehemently disagree with might be correct.