Pavel, I remember Petersen.  I vaguely remember being at odds in the distant past with one of Petersen's positions.  I will have to go back and research Petersen a little bit when I have time.  Seems he was considered a guru regarding some aspect of mining.  My memory on Petersen is just mush at this moment, but you have sparked my interest.

As for data on the number of visitors reading posts on this Agoracom.com site:  Nope, I don't receive anything like that.

As for JD:  I do hope someone will reach out on Twitter.  I have promised myself not to take on any more social media interchanges such as Facebook and Twiter.  My reasoning?  Life is precious and time on the computer takes me so very far away, already, from the sweetness of "Real Life".  I feel that I should be moving in the opposite direction, that is:  away from the plastic and fickle world of computer life.  So, my compromise... since I am addicted to following LAC, is to just not take on any new form of "social media" and, instead, try to socialize more in the world of face to face communication.  Double talk for:  I don't want to increase time on the computer.  That would be akin to doing a "Wrong Way Corrigan" type of run on the football field of life.   JMO   Bill