Not seeing it with this image, but I know exactly what you're talking about as I've had it happen before. On backgrounds like that bright red, the foreground seems to be floating above it and moving independently from the background, right? I've been told this is a symptom of astigmatism (and now that I think about it, the effect probably went away when I had my lasik a decade ago)
I don't see it with this image either (it'll be slightly different on every person's display) but I have seen it before. Astigmatism makes sense.
I saw several of his hotels. That's the guy who changed the face of Vegas. All those mob movies where they moan about how the world changed? That's the guy.
The more I look at it I think it's attached to the chair to help him stand. Note that it's the only chair visible. He had suffered from peripheral neuropathy for years and had very restricted mobility and probably couldn't stand for long periods by then.
That is what happens when you have all of the resources but none of the character to achieve happiness.