The line comes from Commander Zavala in Bungie’s Destiny series, where the character became known for a stern, measured speaking style. Online, “Indeed” spread beyond the game because it is short, readable, and instantly usable as a reaction. Meme editors often pair it with a correct ding for ironic validation, or drop it into gameplay clips when someone says something painfully obvious. It remains popular because one word can signal approval, boredom, authority, or sarcasm depending on the timing.