Im mark k. Sargent, who is one of the leading proponents of, and recruiters for, the flat Earth in the United States. My YouTube videos have greatly accelerated the popularization of modern flat-Earth belief. stars and planets are not physical places but simply lights attached to the dome. all world governments have been lying about the shape of the planet. I have been a speaker at numerous flat-Earth events in the United States, Canada and New Zealand. My series attracted two million views.