Introduction of temporality – limited duration, movement, change – fundamentally changes the way a work of art functions: permanence, constancy, ‘eternity’ are no longer its implicit features; a work of art is not necessarily an object, but also a certain activity, process, experience. A work of art takes over the logic of fluids: its material component, such as shape, size, format, has become variable, while the method of functioning has become fluid. This change cannot be observed independently of the technical reproduction, primarily of film, which for the first time introduces movement in the once static, unchanging image. Temporality spreads through film and moving images in other areas of visual research as well, the effect of which is appearance of a number of new artistic practices: early in the 20th century, within avant-garde, through neo-avant-garde phenomena to the contemporary art in which such a way of functioning becomes dominant.