How as an individual can I know if the Earth is a sphere or a flat disc? What experiment can I do that doesn't involve trusting information from a 3rd party that would prove what the geometry really is?
flat earth is fairy tale for narrow-minded and not educated persons.
one question from me to them: how do u explain the Foucault pendulum?
I have been saying this to them for a long time, now. I wonder how far they go. Do they share the same funny farm? Do they share the same wing in the funny farm? Do they share the same room? Do they use the same Internet access?
