The distance is hazy and foggy in that image. How do you know that you are seeing the true horizon?
Because I do.
Are you suggesting it's not?
At the altitude of an international flight the horizon is just a foggy mess. At lower altitudes, such as on the top of a sky scraper, what makes you think that the horizon isn't beginning its process of becoming a hazy mess, or that the horizon isn't dependent on the quality of the atmosphere in the far distance?
The horizon is the edge of the solid earth. Nice try again at confusing, does not work.