Even a single missed crucial consideration could vitiate our most valiant efforts or render them as actively harmful as those of a soldier who is fig… - Nick Bostrom

By anybody’s standards, there is a huge amount of unnecessary and undeserved suffering that is just bad and that we should get rid of.

The singleton hypothesis is that Earth-originating intelligent life will (eventually) form a singleton. It is an open question whether the singleton hypothesis is true. My own opinion is that it is more likely true than not. Historically, we have seen an overarching trend towards the emergence of higher levels of social organization, from hunter-gatherer bands, to chiefdoms, city-states, nation states, and now multinational organizations, regional alliances, various international governance structures, and other aspects of globalization. Extrapolation of this trend points to the creation of a singleton.

Since we cannot completely eliminate existential risk — at any moment, we might be tossed into the dustbin of cosmic history by the advancing front of a vacuum phase transition triggered in some remote galaxy a billion years ago — the use of maximin in the present context would entail choosing the action that has the greatest benefit under the assumption of impending extinction. Maximin thus implies that we ought all to start partying as if there were no tomorrow. That implication, while perhaps tempting, is implausible.