Is the game meant to be unexplained?

[aphex]

Also with the later TW games (and newer games in general), the game mechanics are becoming sufficiently detailed and complex to be comparable with our experience of Real Life(TM) in some areas.
The gamer may then become more confused with such richness if/when it breaks down in places but holds up in others. E.g. do we expect a certain strategy to work/fail because it would in real life?
Therefore it may be nice to have a guide to temper our expectations of a game that seems to promise so much, but also leave the details of implementation to be discovered through playing :)