@no one:
i find your answer arrogant as usual,i should ignore it, but a reply is needed for others that might think in the same displaced way you do.
Viscosity is a CONCEPT. I know you don't really understand such things and all you would want is a command mode game "clean" of such flavors. In my view, the fact that it is hard to advance in a scene is a side effect of viscosity not a purpose of viscosity. See it as a memory of the land, a "collaboration" between the setup and the active factors (the players). The realm remains fluid just where it should, while forgotten parts of it become less accessible. If you keep in mind its a concept, you can consider all other things and code future features differently, better integrated, compared to thinking of it just like an other 'feature'
The point of changing ap to expl is to better fit the concept..not to change any functionality right now.
I can't say i am for or against this change. I am uncertain of it from a concept point of view, and i am a bit against it from a functional point of view, it will cause trouble till such a change would be integrated. I wish to hear peoples opinions however, from all points of view, to convince me of one or the other, pro/contra aspects of such a change.