The empirical evidence of the Freudian Nachtraglichkeit - a term invented by Freud in 1897 - is that of delay. The effect of the direct and timeless action of the unconscious is a secondary, but not cronologically, consciousness. The unconscious is contemporary to it even if it's unrelated, because, opposing to a linear conception of temporality, the Nachtraglichkeit distorts what the common sense believes. The functioning of memory described by the Nachtraglichkeit is transchronic and, in a way, amnesic.