Solar system, plus the complete past light-cone leading up to the solar system has a total of 1 intelligence developed
Oh really? How can you tell that, say, none of the galaxies in the Hubble Deep Field developed intelligence? Hell, how can you tell there are no intelligent beings floating inside Jupiter right now?
Oh really? How can you tell that, say, none of the galaxies in the Hubble Deep Field developed intelligence? Hell, how can you tell there are no intelligent beings floating inside Jupiter right now?