“Double down” comes from blackjack, where you double your bet after seeing your...

https://utopian-bunny-9c7.notion.site/Double-down-comes-straight-from-blackjack-you-double-your-bet-when-you-re-3ac32fcbb5b980c99bb6d0c3a6d73011

“Double down” comes from blackjack, where you double your bet after seeing your first two cards—bold move, high risk. Learners often overuse it just to mean “try harder,” but it’s really about taking a calculated gamble, not just effort