Has Witten announced his new geometry?

["pi"mp]

I had vaguely read somewhere a while ago that Ed Witten was developing some sort of new geometry where the only true, fundamental objects were worldsheets. Perhaps I'm not correctly remembering the idea but I think it was something like this. Has he announced this recently? I can't seem to find anything online.

 

[Greg Bernhardt]

I haven't been able to find anything. This interview from last year is interesting though
http://blogs.scientificamerican.com...l-thinks-string-theory-is-on-the-right-track/

 

["pi"mp]

Thanks, interesting read. For the record, I found the thread I was talking about above:

https://www.physicsforums.com/threads/geometry-in-string-theory.766452/