I address your first point here: https://news.ycombinator.com/item?id=25999766 https://news.ycombinator.com/item?id=25999766 (in brief, photons are treated no d

I address your first point here: https://news.ycombinator.com/item?id=25999766 https://news.ycombinator.com/item?id=25999766 (in brief, photons are treated no differently than people). I agree that the meaning of probability in the MWI context is an interesting open question. Mathematically, it's the squared amplitude of part of the wave function. But why this corresponds to our personal experience of frequency is something I'm unclear on.