Someone in Saudi Arabia wants to build a building that is twice as tall as the recently completed tallest building in the world, the Burj Khalifa. I have mixed feelings. On the one hand, I appreciate the impulse to build bigger and better. On the other hand, it's stupid; a mile high is too big.
The designer is set to be Adrian Smith of Adrian Smith + Gordon Gill Architecture who worked on the Burj Khalifa while at SOM. While he's likely the most capable and qualified person to build this thing, I doubt the building will ever be completed.
See UPDATE here.