"almost collapsed"? Probably an overstatement.

If anyone wants to read more about this: https://en.wikipedia.org/wiki/Pfizer_Building#Structural_det...

    > This happens semi-regularly when building owners ignore, or don't consult, engineers about rooftop swimming pools.

Another wild overstatement. Yeah, I'm sure the city approved this office to residential converstion with a rooftop swimming pool that has no engineering analysis. "This happens semi-regularly": Can you provide other examples? I couldn't find any with a cusory Google search.