Curvature that you can’t see - ships disappearing over the horizon not enough for you? Spin but you can’t feel it - ever been in a plane? Doesn’t feel like your doing 400mph does it? Space but you can’t go to it - says who? Flat earthers say you can’t then hold it up as proof that it doesn’t exist, circular logic. Force but you can’t measure it - are you talking about gravity? Weight is a direct result of gravity as is acceleration due towards the earth. None of these arguments holds up against even the most basic of counter arguments. What really irks me though is the flat earth comunity not understanding how things work and then misusing and misrepresenting science to try and explain their cockamamy views. I get through the day just fine using all the technology developed by the same maths and science that prove the earth is a globe. Which technologies did you use today developed by the maths of a flat earth?