Comments by "Alex L." (@alexl.4362) on "Physicist Brian Greene Has a Theory on Why Aliens Haven’t Visited Us" video.

  1. Could very well be like the ending scene in Men in Black with the aliens playing with marbles and each one is a galaxy. If that's the case then we are definitely like ants to them.
    66
  2.  @josephBo  It's very likely. If an alien civilization is advanced enough to manipulate gravity then most likely they've mastered how to create life.
    11
  3. Especially his
    2
  4. What if indeed we are the only intelligent life form in this universe...and the universe recycles itself and we are caught in the past yet "aliens" is us from the future visiting the past, which is our present.
    2
  5.  @newdefsys  We can't even have a colony on the moon and we expect to find another civilization out there in the vastness of space? Nah, we still got ways to go unless we get wiped out in the not so distant future.
    1
  6. It explains why they definitely keep their distance and just cruise by on their crafts. Like a safari for them essentially.
    1
  7. In a nut shell yes.
    1