His projections should be understood in the same way that you understand the mental exercise of projecting the current exponential population growth a few centu

His projections should be understood in the same way that you understand the mental exercise of projecting the current exponential population growth a few centuries in the future and wind up with a sphere of writhing humanity expanding into the universe at the speed of light. (If human beings achieve relativistic spaceflight and start colonizing the universe, would more advanced beings see this as a sphere of writhing humanity expanding into the universe at (some fraction of) the speed of light, then come and squash us as a pestilence?)