You are absolutely correct, I stand corrected on this point. Do you happen to know the widths in miles that were used in the simulation as opposed to the footage he used?
No, and that would be one thing to look at the entire viewing angle of the image. You could argue for a bit of a curve on the left side there, but I think the blue beneath the line is just water, as you can judge by the amount of "haze" above the line.
I apologize for having been belligerent/hostile in my previous post. It's just a reflex from being attack as an insane lunatic on a regular basis regarding the FE view.
But I think that his bigger point that he didn't articulate or emphasize well was that there should also be a significant drop in the eye-level horizon. Again, that could be affected by the angle/attitude of the camera, but the image from the Red Bull jump capsule was fairly conclusive.
So the way I look at it is this. If you were to look from one side of Kansas to another, you would have a curvature drop of 120,000 feet (according to globe curvature math). Many amateur balloons seem to top off right around 120,000 feet. So the drop in altitude from one end of Kansas to the other should be the same as the 120,000 feet that those balloons go up to, and there's simply no evidence of such a drop in the horizon line from "eye level".