Is there a known relation between the space of units of a ring spectrum, from stable homotopy theory in the sense of Ando-Blumberg-Gepner https://arxiv.org/pdf/1002.3004v2.pdf and completions of spectra, in the sense of Bousfield -Kan, et al?
In particular, does completion commute with p- completion at a prime p? Since the first is a homotopy colimit like tipe of construction, and the second one is a homotopy inverse limit, this seems to be unlikely. Is there a spectral sequence relating them ?