@hxd1011 what was the understanding ?

@amoeba yep I was reading that yesterday. They spent a lot of time talking about it before making any attempt at explaining what it was

@hxd1011 Ah ... never mind, I didn't see your answer until now. I don't agree with it though. I will probably post an answer myself rather than list my objections

@Glen_b But have you heard about this conjecture before? I am trying to understand how well-known it is. Personally, I've never heard about it before.

@amoeba Not by name at least (at least not to my recollection -- I forget a lot of stuff)

The conjecture looks kind of familiar so it's possible I've seen it.