I learned about the quantum immortality and asked ChatGPT to write an essay about it. Here:
The trope of being "reincarnated into another world" is a popular theme in many works of fiction, particularly in the realm of fantasy and science fiction. This trope involves a character being transported from their own world to another, often through some form of magical or technological means. In many cases, the character retains their memories and experiences from their previous life, which allows them to adapt more quickly to their new surroundings.
One theory that has been proposed to explain this trope is the concept of quantum immortality. This theory is based on the idea that consciousness is a fundamental aspect of the universe and that it can never truly be destroyed. According to this theory, when a person dies, their consciousness simply shifts to another parallel universe where they are still alive.
In the context of the "reincarnated into another world" trope, this theory suggests that when a character dies in their original world, their consciousness simply shifts to another world where they are reborn as a new character. This new world is often vastly different from their original world, with different rules, cultures, and even physical laws.
One of the key elements of this theory is the concept of the multiverse. According to this idea, there are an infinite number of parallel universes, each with its own unique set of conditions and possibilities. When a person dies in one universe, their consciousness simply shifts to another universe where they are still alive. This process can continue indefinitely, as long as there are still parallel universes where the person has not yet died.