I think his point is that the Universe is far larger than the Ear…
I think his point is that the Universe is far larger than the Earth. Our modern-day society is incredibly advanced in comparison to the Greeks, but our Galaxy–much less the cluster of galaxies our galaxy exists within–are exponentially larger still. If anything allowed humanity to develop past the dark ages, it was our humility and willingness to question our assumptions, and I personally feel many cosmologists are as bad as economists and psychologists, which is to say that their field is closer to religion than to science at times.