Something I worry about: is how any position that is not extreme will get invariably get “primaried” by those with more extreme positions in any online debate. 

They will attract more energy , easier to get social capital and also plays well to most online algorithms. 

Having the center get and hold energy seems an unsolved problem.

selective information bias occurs more so now than ever because people are bombarded with so much information now that the only way to capture attention is to stand out; thus resulting in most discourse finding its way at extremities. 

it’s worrying, and probably deeply seethed with how we interact with the web.