No it's not obvious, I'm trying to understand exactly what you'd expect. You already linked to that tweet.

I'm beginning to think you don't know what you're talking about. You keep avoiding answering my questions and just say "it can't scale" but that tells me nothing except your preference. If I were new to all this stuff and curious asking you what I'm asking you, your responses would lead me to distrust you. You should know the details of what you're talking about if you intend to talk about it.