Holes

	Holes(xkcd.com)
	224 points by caminanteblanco 18 hours ago \| 39 comments
	tl;dr: Summary not available
	HN Discussion: ↑Sharing supplementary links and references related to holes mentioned in the article ↑Highlighting fascinating facts about Lake Baikal's depth and sediment ↑Expressing awe or terror at specific holes like Mponeng Gold Mine and crystal caves ~Pointing out a misspelling (Derinkuyu) despite the article's evident effort •Asking clarifying questions about article content (the 'oops' markers)