I'm not hoping it fails. But I will take some joy in the inevitable implosion of an obvious white elephant project obviously made for political (corruption) reasons.

This project is not based in reality, or has any consideration for reality. It is obviously inefficient in it's basic geometry (circle beats line) let alone after looking at the actual numbers. A 200m tall 170km long wall is not going to work. They claim you will be able to travel end to end in 20mins. Thats 510kph without acceleration or deceleration. That's 50kmph faster than the current fastest train (Shanghai Maglev) all whilst being within 200m of 9 million people.

And all of this will be zero carbon of course, with a passively controlled temperate climate in the desert. Nice of them to throw some trees in the graphics to show that.

This is made to pay consultants and businesses, and keep the man in charge happy. I'm not hoping it fails. If they reach all of these milestones and it even turns out to be vaguely ok, I will literally eat my hat, hold my hand up and say I was wrong. But when it doesn't I will take some joy in the mess of a story that comes out.