Being and Nothingness was "a pretentious metaphysical thesis" and "principally an exercise in misusing the verb 'to be'." The philosopher William Barrett, writing in "Irrational Man" (1958), described "Being and Nothingness" as "a great, uneven, brilliant and verbose tome". He noted Sartre's debts to Heidegger, but nevertheless credited him with originality. He criticized Sartre for neglecting Heidegger's "notion of the truth of Being", his understanding of what it means for a subject or object to be. In his view, Sartre failed to "deal with the problem of truth in a radical and existential way", instead viewing truth in "the ordinary intellectualistic sense that
Mario Costa (philosopher) the category of "flux", which his analysis considers both from a philosophical point of view and in its diverse aesthetic manifestations. Costa extended his reflection from the "cinematographic flux" to the present "technological aesthetic fluxes", made possible by the advent of digital technology and networks. He concluded that technological fluxes may also highlight essential aspects of contemporary ontology, being closely tied to our experience of time and existential attitude. Mario Costa (philosopher) Mario Costa (born 7 December 1936 in Torre del Greco) is an Italian philosopher. He is known for his studies of the consequences of new technology in art