But let's suppose some aliens had been watching our pale blue dot in the cosmos from afar, not just for 40 years, but for the entire 4.5 billion-year history of our Earth.
しかし宇宙人が この青白い点を遠い宇宙から 僅か40年間ではなく 地球の45億年の全歴史を 見続けていたと考えてみてください