You know that old joke about soviet citizens waiting 10 years for a new car? I bet a yinrih would hear that and shrug. “10 years? That doesn't sound so– Oh wait, that's like over a tenth of your total lifespan.”

This is why I sometimes think the two species wouldn't integrate well on a societal level. Humans would change too fast for yinrih, and yinrih wouldn't do anything fast enough for humans. Hearthside would ironically be the worst at this.

One of the reasons terraforming is economically viable for them is the original investors in a given terraforming project will live to see the fruits of their efforts. Sure it's not comfortable, but you won't asphyxiate, have your blood boil, or die from an uber sunburn when you go outside. And their pups may even live to see the project completed depending on the timing.