  The relationship between reversible-dynamical and irreversible-thermodynamic
descriptions is analyzed from a meta-theoretical point of view. A network of
inter-theoretical relations is drawn by means of asymptotic relations and
complementarity. It is argued that the "paradox" between micro-reversibility
and macro-irreversibility can be overcome by assuming a meta-complementarity
relation existing between different levels of physical description, preserving
a realist conception.
