“Double down” comes straight from blackjack: when you’re confident, you double...

https://www.cool-bookmarks.win/double-down-comes-straight-from-blackjack-where-you-double-your-bet-after

“Double down” comes straight from blackjack: when you’re confident, you double your bet and hope for a good card. Learners often mess this up, thinking it means just “try harder” in any situation. Nope—it’s about backing your bet, not vague effort