Tony Morris

@EyalL It seems to be quite fundamental to me. The concept X is usable if "not X" is also demonstrable. Is it any other way?

@dibblego for example, a subexpression isn't a unit. Sounds like you're implying its existence means we can't divide solution into units?

@EyalL Why isn't it also a unit?

@dibblego because it's not getting together the code and data relating to an abstracted concept with some subset being the exposed interface

@EyalL I have no idea what you said in relation to the question.

@dibblego you asked why a subexpression isn't an oo unit, the reply makes sense wrt that?

@EyalL It raises even more questions related to, "what is a unit?"

@dibblego data (typically mutable) and methods to manipulate it (some exposed). Ability to have units extend/override data/methods of others