Samizdata I think has articulated the anti-G20, anti-everything problem first and best.
“Going Forward”, we must all upgrade to living in caves and animal skins: we must go forwards to our natural state as hunter-gatherers, of fruit, and of healthy greens. Then there will be no need for shops. Our guts can re-evolve back to 300 feet long, we can go back to quadrupedalism, our brains will shrink, and we shall as true animals progress accordingly.
And then, when the next asteroid comes, we shall die. Like the others…all over the observable Universe. God is merciful and Great….scumbags. What was it she called it…? “Requiem for Man”? You know! That strange unreadable woman whom everybody says they hate….(no, not Margaret Thatcher: she was a chemist, you know.)