I am extremely interested in this but I agree with the others in that I doubt I could do it over Discord or in the format cited in the OP.

I think that this format: 

[quote]Post 1: The current Lens picks the Focus (which is a Period or Event)
Post 2-5: Other players build on said focus.  The general pattern is if the focus picked a period, everyone makes events, if the focus picked a event, everyone makes scenes.
Post 6: Lens makes last event/scene (Which has to be within the Period or Event the focus him/herself has made)
Post 7: A legacy is made by the player who was lens last. (a legacy is essentially the consequences of an event)
Post 8: A new lens selected. (The next player becomes the new Lens)
Post 9: The new lens picks the Focus.[/quote]

would work much better for me, and probably most people. 

That said I really hope this happens because the concept is fascinating. I will be looking checking out the book online and giving it a look through, because I can imagine all kinds of games and settings where it could work. It's an interesting way to worldbuild and engage with history. 

Here's my additions: 

[h3]What must exist in this world?[/h3]
Lifeforms of which human beings have no rational comprehension and which are truly [i]alien[/i] in a nature, contradicting our own notions of time, thought, and biology. 

[h3]What cannot exist in this world?[/h3]
Borg imitators or grimdark 40k-like races (e.g. concepts for aliens and factions should be unique) 

[h3]Period/Era of Time[/h3]
The colonization of the world of Vektri, commencing an era of relative peace between the human settlers and the exot races of the Mane. [Light]