Here, I don’t mean “What is Life?” as in “What is the purpose of my existence?” Rather, I refer to the mysterious phenomenon of nature that created the trees, the bees, the steeds and anemones. At some point in the history of this planet, Life emerged. The general consensus in the scientific community is that the progression from the non-living to the living did not happen overnight, and countless lifetimes’ worth of research have been dedicated to our enlightenment in this process. But how can we study how Life began if we don’t have a rigorous definition of Life in the first place? If the identity of this set of attributes for Life is ambiguous and remains under dispute in the scientific community, how can we sustain the value of our research?

The intensional definition would describe the necessary and sufficient attributes of all members belonging to the defined set

valid definition are needed to distinguish Life from non-Life