Well I'm looking at the front page story, "A Conversation with Lee Smolin." It leads with a monologue from Smolin followed by a response from Arnold Trehub, fol

Well I'm looking at the front page story, "A Conversation with Lee Smolin." It leads with a monologue from Smolin followed by a response from Arnold Trehub, followed by a response from Sean Carroll, followed by an entry from Lee Smolin responding to Carroll's response. Bruce Sterling enters the conversation to express sympathy with ideas Smolin as raised then Trehub comes back with another response and finally Amanda Gefter gives a reply to Smolin. This event is put under the site's conversations section, and a quick perusal of this section reveals tons of similar conversations with multiple contributors all responding to each other, and they've been doing this for years.