Math is a Gatekeeper

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Old joke: 

A math professor was explaining a particularly complicated calculus concept to his class when a frustrated pre-med student interrupts him. “Why do we have to learn this stuff?” the pre-med blurts out.

The professor pauses, and answers matter-of-factly: “Because math saves lives.”

“How?” demanded the student. “How on Earth does calculus save lives?”

“Because,” replied the professor, “it keeps certain people out of medical school.”

Via Math With Bad Drawings

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