This means that your utility function U is indifferent with regard to whether the distribution of utility is equitable among your future selves. Giving one future self u=10 and another u=0 is equally as good as giving one u=5 and another u=5.
I’m afraid there’s still some confusion here, because this isn’t right. To take an example, suppose U = ln(u).
I’m afraid there’s still some confusion here, because this isn’t right. To take an example, suppose U = ln(u).