Sounds like a hangout topic the community would support, actually. But i wonder if it is possible to do so with class....
We have two of the brightest minds in the world, I don't think that would be an issue, but that's up to them ... if they had the desire to discuss such topics.
However, Charles did indicate he knows little to nothing about BitShares 2.0 and Graphene. So perhaps once he's had an opportunity (once such information is available) to research the topic this discussion could take place. Or perhaps the two of you, Charles and Dan, could simply have a discussion where it's a Q&A about BitShares 2.0, Graphene, etc. That would probably be a quicker way for Charles to find out what he wants to know on particular topics rather than waiting for documentation to be written. I'm guessing there are certain areas that he would like to address more than others, the key issues.
Perhaps this adds nothing to BitShares 2.0. Perhaps it's pointless and a waste of Dan and Charles time (let us know!), but I sure would be interested to hear such a discussion and I feel it would benefit 2.0 and the Community.
That's my 2 UIA.