Yep. But more than that, what's the POINT?
Why bother making a game difficult to play and learn? There are great abstracts
which are simple and deep, to provide as much challenge to supply a lifetime.
I think the modern heavy euro is as far as we're going to see in this direction.
And the heaviest games there (stuff like Splotter Spiel) don't appear to be
particularly abstract.
Oh, I think such a beast could be super-cool. Highly detailed, rich interactions between game systems, emergent phenomena. Something you could really immerse yourself in. It would be like another world.