The lectures organiser wants to have a small mine exploration slot in the lecture programme each time (that's the impression I have been given anyway), and I already offered to run my NAMHO presentation at Hidden Earth. I was asked at NAMHO to suggest which of the lectures I heard would be good for Hidden Earth, but it is only a few weeks away so I don't know if that will happen yet. Of the ones I listed, two lectures were from individuals who are Hidden Earth regulars anyway, so let's see.