Reading the comments to Krivit's
latest speculative post supporting W-L theory reminded me of why LENR is currently so singularly unconvincing.
As pointed out there, a physical theory without a testable null hypothesis is very suspect. taking W-L theory, what is the null hypothesis, and how is it tested?
Well the null phenomena is presumably that high energy electrons
do not exist in lattices.
This is essentially untestable, because existence of LENR is premissed to be variable and dependent on factors which are difficult to be controlled.
In fact the LENR phenomena is essentially undeniable for the same reason. There is no experimental result which can disprove the existance of LENR phenomena as currently advocated.
The nearest you can get to a proper test is a way of showing that
any specific purported LENR experiment is not in fact working via weak interactions.
You do this by testing the neutron shield (conveniently) claimed to be a property of LENR systems. The same high energy electrons that create ULM neutrons also offer 100% perfect gamma shielding. It seems.
Such a shield is essential because high energy gammas, a sure indicator of weak interactions, have never been observed above background level in LENR systems. It is necessary therefore to posit some speculative near-perfect shield to explain this absence. It is worth pointing out that perfect high energy gamma shields do not as far as we know exist,
The test is to shine a high energy gamma source through an LENR experiment during operation and detect the results. We could test whether there was any reduction in the gamma transmission as the experiment was switched on. If there is not 100% perfect shielding the claimed weak interactution element transmutations cannot exist because they would include many pathways with high energy gamma emmission, which is never observed.
This experiment would be great, because also, if a gamma shielding effect were observed, it would be positive evidence of heavy electrons and hence strong confirmation of W-L theory and therefore LENR.
I'm a bit surprised no-one has yet done this? there are a lot of pro-LENR experimentalists out there...