Then the best decision is to make some calculations, say, how much suffering per 1m/km2 on average, multiply that by how much of the universe you can observe, then add an incredibly large amount of 9s to it’s right side. Use all the excess utility to expand your space travel and observation and save the other planets from suffering.
“But a large, unknown number could easily be some sort of infinity.”—it could if I hadn’t specified that we are assuming it is finite.
Then the best decision is to make some calculations, say, how much suffering per 1m/km2 on average, multiply that by how much of the universe you can observe, then add an incredibly large amount of 9s to it’s right side. Use all the excess utility to expand your space travel and observation and save the other planets from suffering.