Ok after reading some of the forum posts in this thread i find a flaw in some of the theories. i may be wrong but then again i may not.
lets first use an example: you have a car its principally cooled by water, this means you have a radiator, res, pump, and block.
now if you look at the thermals of this loop, the water leaving the block is the going to be the hottest, now the water leaving the radiator is going to be the coolest. there fore there will always be hot spots and cold spots the loop.
with that said this applies to WC computers to.
now lets take in to account fluid dynamics.
The foundational axioms of fluid dynamics are the conservation laws, specifically, conservation of mass, conservation of linear momentum (also known as Newton's Second Law of Motion), and conservation of energy (also known as First Law of Thermodynamics). These are based on classical mechanics and are modified in quantum mechanics and general relativity. They are expressed using the Reynolds Transport Theorem.
In addition to the above, fluids are assumed to obey the continuum assumption. Fluids are composed of molecules that collide with one another and solid objects. However, the continuum assumption considers fluids to be continuous, rather than discrete. Consequently, properties such as density, pressure, temperature, and velocity are taken to be well-defined at infinitesimally small points, and are assumed to vary continuously from one point to another.
so if fluid dynamics states that everything varies from point to point how can the temperatures reach equilibrium in a WC system??