Dr. Sheldon | Wise

"Your proof," Edith said softly, "assumes the system has decohered. That the cat is either alive or dead, and we simply don’t know which. But Erwin didn’t build a simple system. He built a nested one. The observer inside the box is not you. It’s the cat itself."

She handed him a pair of lead-lined gloves. "The mechanism was set to trigger one hour after sealing. That was ninety-two years ago. The cat is dead. The cat is alive. The cat has been both, for almost a century, because the only observer that counts is inside, and she’s never decided." dr. sheldon wise