I don’t think so, because the people walking up the stairs experience the illusion. It’s not just in the video that we saw. I don’t understand the explanation that is given in the video, and I can’t find anything clear online that explains what the illusion is.
Throw a grappling hook up between the railings. Could you pull yourself back down, or would you bean yourself in the head with it, lol?
The reason you could not understand the illusion is that any explanation is false. It’s false, only an illusion.
“I don’t think so, because the people walking up the stairs experience the illusion.”
And David Copperfield’s assistants really believe he went through the Great Wall.
The people on the stairs are part of show. Watch the signs on the wall in the empty stairwell. Watch the tight shots of the people going up the stairs.
Camera trickery and not very well done at that!