Space in Space

I was wondering how long it would take me to forget a day.  I lasted almost two weeks.  I looked up the definition of space.  This is my favorite one: 

the unlimited or incalculably great three-dimensional realm or expanse in which all material objects are located and all events occur

 

The word that sticks out in my mind the most from that definition is "unlimited."  The universe is theoretically infinitely long, wide, and deep.  Some astronomers believe it goes on forever, while others believe that there are actually multiple universes.  It is so hard for me to fathom enormous the universe is.  And when I try, all I feel is small.  Our galaxy is 100,000 light years across.  And somehow within that space a tiny blue planet exists.  In the universe space does seem to be unlimited, but here on that tiny blue planet, space is one of the most controversial topics around.  Space for an increasing population, space for natural resources, space for another mouth to feed.  My conclusion: space is relative.

 

observation:  Yesterday I saw two trees side by side that appeared to be identical.