Comments by "Lepus Felix" (@MasticinaAkicta) on "An Entire Mountain in Sichuan Collapsed, China’s Underground Is Hollowed, Risking Sudden Sinkholes" video.

When water gets stuck in the ground, freezes then thaws, pours away causing underground "bubbles" yeah things get bad. That is why building in some places is a BAD IDEA. Seriously, why have they forgotten those lessons from long ago! Would the ancient chinese build like that?
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