maybe measures would be more applicable than cardinalities? If there are $\mathfrak{c}$ universes, it can still be meaningful I think to say that one in ten of

maybe measures would be more applicable than cardinalities? If there are $\mathfrak{c}$ universes, it can still be meaningful I think to say that one in ten of them contain a simulation (though, $\mathfrak{c}$ might not be the right cardinality? Maybe $2^{\mathfrak{c}}$ would be closer? I'm not sure.) I suppose there is also the question as to whether to consider two identical simulations in two different universes to be the same simulation or not, and how to take that into account when considering the chances that one is in a simulation or not.