interesting in that wiki on Kardashev... Extensions to the original scale The state that human civilization currently occupies was originally Type I in the Kardashev scale, but has a K value below 1 using Sagan's logarithmic formula (described above). Zoltan Galantai has defined a further extrapolation of the scale, a Type IV level which controls the energy output of the visible universe; this is within a few orders of magnitude of 1045 W. Such a civilization approaches or surpasses the limits of speculation based on current scientific understanding, and may not be possible. Frank J. Tipler's Omega point would presumably occupy this level, as would the Biocosm hypothesis. Galantai has argued that such a civilization could not be detected, as its activities would be indistinguishable from the workings of nature (there being nothing to compare them to) seeing we are talking "green".