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The hardness of limestone can vary greatly, from relatively soft to extremely hard, depending on factors such as its mineral content and degree of compaction. Soft limestones can be easily drilled using standard drilling equipment, but harder varieties often necessitate more robust machinery and specialized bits. Carbide-tipped drill bits, for instance, are commonly employed due to their durability and ability to withstand the abrasive nature of limestone.

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One notable example of the intersection between groupthink and fan culture is the intense loyalty that fans exhibit towards their idols. This loyalty can sometimes lead to blind acceptance of everything the celebrity says or does, regardless of its validity or morality. In some cases, this blind loyalty can even result in fans defending their idols against criticism, leading to a form of groupthink where dissent is discouraged.

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