These are very difficult subject and you really need to understand it before giving an opinion. I'm not a expect, nor an cryptographer but i will say i was lucky enough to discover Bitshares earlier. With a business administration and IT background, I could undertstand the design method of Dan work and even relate it with his life vision. It really click with mine and I started going into various aspect of it and comparing it with other: governance model, accnt management, accnt authorities, security, using technologie to solve real life problem. Even in my blockchain community, people did not believe Steem was a Blockchain. It's a good thing to have Bitshares/Steem/Graphene under the radar. As with Steemit, people need to use Blockchain with out knowing it's blockchain and I think EOS will reflect this.
RE: The limits of knowledge - why we don't know enough about blockchain