FYI: All, please take a close look at Fig. 2 of this Holmlid Paper:
http://fuelrfuture.com/science/holm2.pdf I think it will help explain how Holmlid had viewed/grasped the energy levels back in early 2014. Also keep in mind that H(-1) is now called H(0). It was thought that the apparent Ultra-dense state was Inverted Rydberg Hydrogen (IRH, hence the “-1”), but now this state is seen as somewhat different. The “0” reflects that the orbital angular momentum of the electrons is zero. The picture in Fig 1 may need some modification to take into account the various apparent spin states of H(0). Winterberg’s earlier description has slightly fallen out of favor in regards to more recent data, but I am not sure what the latest findings suggest. Reading more of literature should help clear up the current understanding of H(0). Mark Jurich