My idea is about merging the first and third space.
In this idea I would interact with the viewers in the third space by answering questions, drawing etc. However I myself would have no direct contact to the third space. I would be standing on a big piece of paper with a camera videoing me but I would have no access to any screens. I would react to what my assistant reads on their screen. So I would be fully aware of the first space while interacting with people in the third space.