I've personally stood on the Michigan side of lake michigan and seen only the tops of the skyscrapers in Chicago while everything else was hidden behind the hor

I've personally stood on the Michigan side of lake michigan and seen only the tops of the skyscrapers in Chicago while everything else was hidden behind the horizon. My dad showed me on a trip to Michigan when I was less than 10 and even then I understood the effect. You can even see it yourself on a clear day of you get a window seat on your next flight. That's not even mentioning experiments you can do yourself right here on the surface measuring shadows to estimate the circumference. Likewise, there are countless images of the Earth from space, and even the moon. Some outdoor will say they're all dates, but at that point if every single image of the Earth is faked, then how can you trust anything? That would require a conspiracy so vast that your own parents are probably in on it and you should trust no one.