A half-life is the amount of time required for half of a given substance to decay. Half-life is applied to materials that experience exponential decay, meaning that the rate of decay is directly proportional to the amount of the substance, slowing down as the substance depletes. Read more
Half life is also a mighty business factor and can be metaphorical applied to goods and services.
However everything that has a rule has exceptions that confirms the rule, exactly that is what makes considering average things in the shape of half life so interesting and surprisingly measurable.The average bestseller book makes most of its sales in around two month of its entire life. A point that artists need to consider if they submit works to print services might be the half life of an average featured print that is just a few days.
Art featured in traditional galleries or art shows can develop a different half life. Popular art from names like Picasso or Michelangelo define either their very own half life or are exceptions to the rule when a piece of art is getting another "highest amount ever sold for" at Christies or other auctions...
Regarding the niche you are going for its important to measure instead of trusting in god or lying to yourself.
This makes the process of uploading content to the web more professional. And with professional I´m not referring to quality but the quantity of works presented at a give amount of time.
I suspect half life even works for friendships, I mean the personal interactions in real life, not the facebook friendships. You see yourself often connected much at the first time with a new friend, because its exciting and after a while it is just boring to do the same stuff alltogether. I believe that half life also works in social media and business connection. But don´t fear, if you have the Poem "Steps" from Hermann Hesse in mind it doesn´t matter:
Let me cite the following part to show you why:
High purposed we shall traverse realm on realm,
cleaving to none as to a home,
the world of spirit wishes not to fetter us
but raise us higher, step by step.
Scarce in some safe accustomed sphere of life
have we establish a house, then we grow lax;
only he who is ready to journey forth
can throw old habits off.
I bet art is the only thing in life that is able to define its very own half life.
