Campaign Pitch: Revealing the Secrets of the Mystery in the Most Literal Way

Interesting, but I can't imagine writing out that much of the game's truth ahead of time. I'm always leaving things undefined so I can slot in a good idea (from me or the players).

I love this idea. Would have been perfect for my current game, though I have enjoyed the flexibility to adjust things the players don't know yet.

That could still work with this approach but you'd have to be intentional about keeping changes within the same scope / size