Eisenstein now faces a fundamental problem: how to reconcile his method of montage with an essentially continuous experience of navigating through a space? He keeps thinking about this problem when he gives a lecture in the Institute of Psychoanalysis in Berlin in 1929.[5] Later this year he visits Bauhaus where he talks with Hungarian artist and Bauhaus professor Moholy-Nagy to see if his students will build a model of the house which Eisenstein can film (Moholy-Nagy is in charge of the Metal Workshop). However, Moholy-Nagy is frustrated with art school politics and he already made plans to go to Berlin to start his own advertising agency.