So, a great video here showing the Himalayas, including Everest, from 2,000 miles away.
Now, the individual interviews the pilot, who admits that you can see the Himalayas, and he says that you can see them because they're so tall.
Well, he didn't do the math.
If the plane is at 35,000 feet and Everest 2,000 miles away, nearly TWO MILLION FEET should be hidden by the alleged curvature. Everest has an elevation of about 29,000 feet above sea level. So, just for comparison, if you stacked SIXTY-NINE Everests on top of one another, they'd still be hidden at 2,000 miles away.
But I'm sure the magic of refraction just continues to do its thing.

