Is Thorin to remain alive?

[Galadriel55]

Originally Posted by tom the eldest

No offense,but who schrödinger?

Schrodinger is a scientist, but is most famous for his philosophical parable or thought experiment of the cat. Without too many details, the experiment goes like this. In a box, you put a cat, a bottle of cyanide (poison), and a source of radiation (lamp or anything else that radiates). The box is closed, and you cannot see inside. When a radiation particle hits the cyanide bottle, it breaks, spilling out the poison and killing the cat. You don't know if the cat is alive or dead without looking inside the box, and there is no "in between" state. It's not like he's 50% alive. So he must be 100% alive, but at the same time 100% dead, and both are true. When you look inside the box, the cat is either one or the other, but not both. When you cannot see him, he must be thought of as both.

Why is Haldir a Shrodinger's Elf, though? Because he's alive in the books but dead in the movies?