>Lets say I decide to worldbuild a Clarketech heavy, post-heat death or big rip setting purely for fun (not for a story or RP). Besides watching tons of Isaac Arthur videos and consuming science fantasy series, where would be the best point to start? A timeline? A civilization? A bit of technology? A map or general tech level? I know this is largely a question that I could answer myself (not to mention an extremely general one akin to "Where do I start worldbuilding?"), but with the sheer amount of incomprehensible shit a polity could do at this scale (never mind whatever their semblance of culture is), I kind of need some help narrowing down a good starting point.