Yes, I think I got that at last DA. It gets around the Pauli exclusion principle. Thanks.

Thanks again, MrBigg, for your help.

It's not always that the nature of the info is difficult to understand, but when relatively new research is involved, some articles are obsolete (and therefore seem contradictory). As for Dan Summons, it seems that he was right, but what he said was misleading since he made no mention Cooper pairing. This may be because it wasn't achieved until 2003.

"Time is what prevents everything from happening at once" - John Wheeler