El Gato de Schrödinger

I put in a closed box my body and a sealed glass jar with gaseous poison that can kill me instantly, pointing to the jar a hammer ready to break it. The hammer mechanism has a 50% chance of being activated. For as long as I’m here, I’m two realities. I’m alive and I’m dead. Who decides whether I live or die? Your mere observation.

Your curiosity killed the cat.