Comments by "prism828" (@prism8289) on "Physicist Brian Greene Has a Theory on Why Aliens Haven’t Visited Us" video.

  1. Because getting here isn’t like taking a bus or driving out to the country. You have to cross a galaxy. But what he added was extremely relevant. Any signal that distant planets pick up on us would almost definitely preceded human civilization because the signal takes so long to arrive. When you see a distant star, your actually loooking hundreds or thousands of years in the past.
    2