  The dynamics of the fluid fields in a large class of causal dissipative fluid
theories is studied. It is shown that the physical fluid states in these
theories must relax (on a time scale that is characteristic of the microscopic
particle interactions) to ones that are essentially indistinguishable from the
simple relativistic Navier-Stokes descriptions of these states. Thus, for
example, in the relaxed form of a physical fluid state the stress energy tensor
is in effect indistinguishable from a perfect fluid stress tensor plus small
dissipative corrections proportional to the shear of the fluid velocity, the
gradient of the temperature, etc.
