lamella+as+an+indestructible+and+immortal+embodiment

Did Zizek not see John Carpenter's remake of The Thing? Because it really fits his analysis so much better than the alien in Alien"

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Now THAT's an hommelette! I guess I would say, on the basis of these two films: despite its alien-ness, Alien still develops (egg, juvenile, adult) a la genetic preformationism, and it merely terrorizes; it's The Thing that continually mutates and shape shifts, and horrifies. And the Alien can be still be killed by a hero(ine); ain't no killing Das Ding...

Aside from that, though, which is far from your responsibility, you've done a great job with this polymorphous concept, especially in connecting it via Marcuse's reminder to Freud's emphasis on the repressive element necessary to its operation. Extending THAT to an analysis of technology is just begun here, but it seems well worth the work to me.