sorry for the even more last minute contribution, but for the records…:
the proposed question was:
how does lecture performance operate in opening up the knowledge production?
First we had a discussion on "site specifity" which meant in the context of our discussion, that you have to be there, to encounter the actual performance, to be able to answer that question.
As an example of a lecture performance we were told about Zoe Laughlins performance at performance platform in Berlin, which was dealing with the performativity of matter.
She was presenting materials (like for example the cotton produced by NASA to collect moon dust, paper clips, etc.). In a number of processes these materials transformed, according to (basic) physical laws.