Here is one general relationship which may enter into this discussion. When
metals - or any electrical conductors - are heated they become more resistive,
not less. As they are cooled they become more conductive. If any experiment
depends on electrical input, as do all electrolysis experiments, then the
unavoidable result is that nascent positive thermal feedback to the overall
system reduces conductivity which reduces current delivered. The early stage of
positive feedback is either squelched or proceeds to failure if it is strong
Of course, there is a unique claim for one LENR system which needs only thermal
input – the original Rossi device, which is the only system which can truly
benefit from positive feedback. In fact, his E-Cat system demands it.
Electrical loss from higher resistivity is avoided.
There is a preferred and well-known negative temperature feedback mechanism in
normal electrodynamics but there can be a blip in the curve having DIFFERENTIAL
positive feedback, as in Miles case, where things would be reversed from the
normal state in a narrow range. It could lead to a runaway or meltdown if it
was more than a blip. There are four or five examples of runaways over the
last 28 years. Because of rarity, the runaway has not been harnessed to
increase COP since it is rare, unpredictable and uncontrollable other than in
Thus - there is no evidence of positive feedback being useful except for the
infamous wet steam device and its successors which were claimed to run on
thermal input. NO ONE ELSE has made this claim- other than Rossi. Miles may
see differential positive thermal feedback over a part of the curve but he
could not capitalize on it for increased COP.
If feedback is not predictable or controllable then it clearly isn’t going to
be integrated in a system in order to produce higher COP in the last stage
which was Alain’s original presumption. Rossi provides the only evidence for
positive thermal feedback leading to higher COP.
Anyone who accepts the positive feedback modality should realize that it
comes with a lot of baggage.