My main pass time is coming up with funny little alt-history bits for a super hero story's worldbuilding. They aren't actually relevant to the story. Like I have a whole thing going about how the Soviets built FTL and contacted aliens and straight up didn't tell anyone else on earth about this. It's not relevant to the plot at all but the societ chancellor, who does show up, is a former cosmonaut so I wanted a back story for him and it spiraled out of control.
Also they built FTL mainly to hunt down and kill Hitler, who escaped earth using a primitive form of FTL alongside a contingent of nazi leaders and metahuman soldiers. They didn't get to kill him because he was eaten by the Ctarl-Ctarl from Outlaw Star before they got there.
