The Second Law of Thermodynamics
“The entropy of an isolated system not in equilibrium will tend to increase over time, approaching a maximum value at equilibrium.”
In the Free or Alternate Energy world we hear sooo much about this "law" as though it were king of something. Unfortunately, most who talk about it can't seem to read plain English. The quote from Wikipedia includes the exclusionary term "isolated system". If it were possible to create a truly isolated system the law, as stated, might maybe be true, perhaps. But it is IMPOSSIBLE to create an isolated system therefore an isolated system is an impossibility. The premise and context of the law, as stated, is wrong-headed and is therefore meaningless.
1st) While it is possible to exclude some forms of energy from a system it is not possible to exclude all forms of energy from a system.
2nd) Quantity of Energy is predicated on polarity or difference of states. Therefore there are at least two states of energy where no discernible "useable" energy can be found: a) in harmonic conjugate form and b) in neutralized (depolar) state.
3rd) These non-observable forms may, under appropriate, circumstances, rekindle or aggregate into observable forms and quantities. This is centropy or as some chose to call it negentropy.
In sum while the Second Law may have some validity in some circumstances it does not hold in others and due to its not taking into account a fuller reflection of nature's dynamics it is also incomplete and should not be considered as a law but more as a general principle active in certain cases only.