Rather than paraphrasing a relatively short post from another blog, I’m just going to do the old copy and paste routine. Below is a post titled “The Tiny Humanity Bubble” on the jackadamblog that offers some potential mind-blowingness.
“Mankind has been broadcasting radio waves into deep space for about a hundred years now — since the days of Marconi.
That, of course, means there is an ever-expanding bubble announcing Humanity’s presence to anyone listening in the Milky Way. This bubble is astronomically large (literally), and currently spans approximately 200 light years across.
But how big is this, really, compared to the size of the Galaxy in which we live (which is, itself, just one of countless billions of galaxies in the observable universe)?
To answer that question, I put together the following diagram of our galaxy with the “Humanity Bubble” embedded within it. You’ll need to click on it to get the full resolution image and zoom in on the highlighted region.”
Wow, we’re tiny! Nature is so much more substantial than we commonly give it credit for. We are a just a tiny, tiny piece of the ever-expanding big picture.
It seems to me that aliens/intelligent life should be a foregone conclusion given the sheer magnitude of the known Universe. How could we be arrogant enough to believe that we could be the only game in town?!