“Therefore, it’s possible that you dropped steak on the floor. And according to Everett’s Many Worlds Interpretation of quantum mechanics, that means that you did drop steak on the floor. Which means I just need to find it.”
“Well, technically, what the Many Worlds interpreation says is that there’s some branch of the unitarily evolving wavefunction of the universe in which I dropped steak on the floor.”
“Right, so I just need to find the unitary whatsis.”
“The thing is, though, we can only perceive one branch of the wavefunction.”
“Maybe you can only perceive one branch. I have a very good nose. I can sniff into extra dimensions.”
It doesn’t take much reading of Quantum Mechanics to make my head hurt so reading explanations taken down to the level of a dog’s understanding helps to get the head wrapped around the concepts involved. In short, while Everett’s Many Worlds Interpretation of Quantum Mechanics is pretty cool it’s also of little use to those of us who’d like to change which reality we’re dealing with.