One variable here might be that people have very different levels of sensitivity to motion sicknesses. I'm hyper sensitive. Most carnival rides will disable me

One variable here might be that people have very different levels of sensitivity to motion sicknesses. I'm hyper sensitive. Most carnival rides will disable me for hours. While others can't get enough. So the issue Murdoch is discussing would be relative to the viewer. This is obviously a problem in a mass medium, where making accessible films, and films accessible, requires mind boggling effort.