If one thinks of the Universe as a closed system -- with the conservation of energy firmly in place -- how can there EVER be in the aggregate a "decrease in the system's ability to do work" ...or "a decrease in the energy available" (from Oxford's Dictionary of Science)? Further, if this "Second Law of Thermodynamics" is "true" -- that "any real change to a closed system tends toward higher entropy, and therefore, higher disorder" -- how do we/you explain the evidence to the contrary: the constant formation of coherent sub-systems...like atoms, molecules, organisms, stars and galaxies (NOT a comprehensive list!)? If the Universe is indeed "losing heat" -- where is the heat going? Finally, might not the same "cooling" of the System that caused elementary particles to "condense out" of the "primal energy" just after the Big Bang ...might not this same "cooling" that is predicted as part of the current "eternal expansion" theories cause ANOTHER "phase transition" that produces "matter" out of energy, thereby INCREASING THE OVERALL GRAVITY of the System to cause It's eventual COLLAPSE? And if not, why not?