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

https://www.beacon-bookmarks.win/double-down-comes-straight-from-blackjack-you-double-your-original-bet-when

“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