You probably find this idea strange and implausible, and I must confess that this is my gut reaction, too. Yet it looks like we might just have to live with it, since the simplest and most popular cosmological model today predicts that this person actually exists in a galaxy about 10^10^29^^ meters from here. This proposition doesn’t even assume speculative modern physics, but merely that space is infinite and rather uniformly filled with matter. Your alter ego is simply a prediction of eternal inflation, which, as we’ve seen in the last chapter, agrees with all current observational evidence and is implicitly used as the basis for most calculations and simulations presented at cosmology conferences.