Here's some trenchant Shoulders' stuff which relates to the reduced repulsion, increased attraction of deuterium under reduced Beta-atmosphere environmental pressure.
===================================================== >From the earliest realm of electrical investigation using cat hair and amber through the more technically advanced era of silk and a glass rod, it was determined that like charges always repel. What should have been a temporary guideline using this data was erroneously cast in cement as a sacred truth and immutable law by fakirs crying from the scientific tower of Babel. This belief persisted throughout the very technical age of arc and spark investigation in spite of outstanding but unheeded evidence of charge accretion appearing everywhere in the so-called cathode spot phenomenon. The old law of like charge repulsion is good but not all-encompassing, because at any one time, there are likely more free electrons adhering to each other in this world than there are being repelled by each other. Electron clusters are ubiquitous. When the electron clustering effect was first found by the author, its mention to all others was treated as scientific sacrilege as the message from the fakir was still echoing through the halls after these many years. The message here is: Believe what your senses tell you and not what others say. What I see is that the like charge between electrons more often attracts than repels -- whenever the spacing between them is small. ====================================================== And where does the reduced pressure come from in this instance. Well if one visualizes the electrons in a raging ZPE ocean then the sloshing about between the electrons will lead on average to a net Bernoulli pressure drop and a net B-a pressure forcing the electrons together. The important point that Shoulders brings to the cold fusion table is that repulsion of like charges is not fixed like the laws of the Medes and Persians. What is sauce for electrons is sauce also for protons. If electrons can cluster then so also can deuterons, especially considering the fact that the environment within a metal must be vastly different from the environment outside. Frank Grimer