We could become fanatical about affecting the rate of cosmic expansion, but I think space colonization (+ acausal influence) would probably be more important (good or bad, depending on how it goes and relative weights given to goods and bads).
We could become fanatical about affecting the rate of cosmic expansion, but I think space colonization (+ acausal influence) would probably be more important (good or bad, depending on how it goes and relative weights given to goods and bads).