I've been reading up on the Many Worlds Interpretation of Quantum Mechanics, and there is one thing (among many) that I really don't understand. How many worlds are 'created' by an 'observation' or 'event'?
For example, in the traditional Schrödinger's Cat experiment a cat is put into a box with a poison flask that has a chance of breaking, with the cat dying if it does. But how many worlds are created by this? If the probabilities are even I could understand two worlds being created. But what if the flask has a 70% chance of breaking? Are ten worlds created, in seven of which the cat is dead? Or are an infinite number created, but in 70% of which the cat is dead? Or are just two created, but you somehow have a 70% chance of ending up in the world with the dead cat? Or is it something entirely different?