It's unreadable to you. The whole book is a play with other philophical concepts (from Marx and Hegel among others) which are most of the time not explicitly q

It's unreadable to you. The whole book is a play with other philophical concepts (from Marx and Hegel among others) which are most of the time not explicitly quoted, with a lot of détournements on top of it. As for the importance (or not) of the situationist movement (their members refuted the term situationist) it needs to be recontextualized with its time and the place it took in the art and politic to judge if it is just a hack, as you assume.