As bad as that is, it only scratches the surface because they didn't actually go inside any of the buildings. It would be unimaginable for a building outside of the Chinese bubble to literally start collapsing upon itself after standing on its own for only three years.
I've witnessed a lot of it, myself, but this video was posted on HN a couple of days ago:
https://www.youtube.com/watch?v=XopSDJq6w8E
As bad as that is, it only scratches the surface because they didn't actually go inside any of the buildings. It would be unimaginable for a building outside of the Chinese bubble to literally start collapsing upon itself after standing on its own for only three years.