Excellent video trending on YouTube explaining the construction of Millenium Tower and how they're trying (and failing) to right it now. Probably nothing eye-opening if you've been following closely or are in the construction trades, but extremely interesting as a layperson.
One thing I still don't understand is that at 5:32 the video states that the building has settled 17 inches, more than 3 times than what was expected over the building's lifespan, and is out-of-plumb by over a foot. Yet, the narrator says that one probably wouldn't notice this with their naked eye. How can a building settle about a foot more than expected, unevenly, and it not be noticeable to someone on the sidewalk? Is there not a step-down created? I must be misunderstanding something.