One thing I have learned in a long life: that all our science, measured against reality, is primitive and childlike. We still do not know one thousandth of one percent of what nature has revealed to us. It is entirely possible that behind the perception of our senses, worlds are hidden of which we are unaware.

~ Albert Einstein

Valle de la Luna (Moon Valley), Chile – photo by Aliaksei Skreidzeleu, bigstockphoto.com