Flerfs often say "You can't show refraction bringing back objects over a curved surface" but they are liars
https://www.youtube.com/watch?v=5lmmzvzz_Xs

>Refraction has never been shown to make an object hidden behind physical obstruction to arch up and over the obstruction bringing it back into line of sight of the observer due solely to atmospheric refraction
https://www.youtube.com/watch?v=5lmmzvzz_Xs