I'll make a second post in the IC as a example post.  


In this RP you write about some events/species and what they're doing on a macro scale and can also write on their culture, tech and so on.  So this is kind of like multiple people collaboratively writing a encyclopedia galactica.  You can make and kill off your civilizations, cultures and species as you will.  You also need not make a sapient species.  For instance I started this RP off describing a alien ecosystem of nebula dwelling creatures who are petty much the reason you and me exist (sometimes they touched a planet, spreading microbial life to it).  That's distant history.

If you need a lead-in, simply use year zero to write about the history of what faction/Civ/Empire or whatever it is you want to be up to year zero (year zero in human time I may just have specified in my second post which will simply be a way to get humans around the place so people can have all the people they want).  

In theory this RP may get to the point where multiple people may build off each other.  it's basically a Sci-fi themed collaborative world building RP.

Collaborating with a pirate pad may be useful for when history starts getting more intertwined.

While the RP has lower standards than true vacuum (as this RP occupies a distinct niche from true vacuum) I may reserve the right to axe a post that breaks continuity too much.  Also no fandom stuff, however archetypes (like greys) are tolerated.