Well i guess that's cos he tried to cover too wide a topic to close the gap of understanding between him and Joe, he's trying to describe what Steem is, as a blockchain token, then he gotta describe what a token is (and how people trade it), and THEN he touched a bit on what a blockchain is..

It's like telling people what a microwavable tupperware is when the magnetron was just invented.

But again, if Joe only tried to really understand all that beforehand (he did has a show with @aantonop of all other people before). He would have his mind blown.