Since the Paleolithic age, man, in leaving a mark and trace of himself on a support, has always shown an interest in grasping from the experience of life what he believes to have an important meaning, attributing to it a particular value. This anthropological behavior is well testified by the history of art, behavior which, with the evolution of man, reflects that greater awareness of the concept of transience, changeability and the ephemeral state of existence of things. It is above all to the concept of "beauty" and "good" that modern man attributes the absolute values ​​of his existence, concepts that are still conveyed today by every medium dedicated to art, from painting to photography, from video to digital media etc... The very nature of many new technologies of art demonstrate, in their production process, a purpose that has to do with the evanescent physicality of things of our reality, as photography demonstrates, with its retaining on the surface what passes through an evanescent and impalpable "writing of light". It is quite often precisely the ephemeral state of things and the evanescent perception of them that arouse in us a passionate participation with them, useful to feed our being and to reactivate our senses.