Tazɣant tasentalant d tarrayt n tesleḍt n tsekla, yebnan ɣef tmiḍrant-agi n usentel, i dyesnulfa Gaston Bachelard (1884-1962). Ɣer-s netta taɣult n tira d annar n usnulfu anda amaru ad d-imud tugna tagejdant n udlis, gar yimusnawen i yettwasnen ad nebder : Jeanpierre Richard, Poulet et Starobinsky, Rousset et Jean-paul Weber, anaw n tezɣent tasentalant d asentel.2