The universe is expected to die a heat death so even if it goes on forever in some sense utility is finite, so at least from the point of view of infinite ethics nothing to worry about.
Even if that is the leading theory, we may be wrong. So I think we cannot rule out non-null utility being possible forever, and therefore there is a chance cumulative utility tending to infinity. However, I think there is an important distinction between something tending to infinity, and something being infinite. If utility tends to infinity, it is still finite at any given time, which means expected value calculations will not lead to unresolvable indeterminate forms.
Quantum mechanics many worlds theories suggest the universe might be very very very very big but not infinite.
Yes, in the sense that a physical theory can only suggest infinities as limits. There will never be data pointing towards infinities because these are not (physically) measurable.
Thanks for clarifying.
Even if that is the leading theory, we may be wrong. So I think we cannot rule out non-null utility being possible forever, and therefore there is a chance cumulative utility tending to infinity. However, I think there is an important distinction between something tending to infinity, and something being infinite. If utility tends to infinity, it is still finite at any given time, which means expected value calculations will not lead to unresolvable indeterminate forms.
Yes, in the sense that a physical theory can only suggest infinities as limits. There will never be data pointing towards infinities because these are not (physically) measurable.
This is very much in agreement with Ellis 2018.