Why does Marvel hide Easter eggs that take years to find?

The answer

Marvel Studios plants visual Easter eggs that sometimes take years for fans to decode, rewarding obsessive rewatching. In 2011's Thor, a golden gauntlet glimpsed in Odin's vault took seven years to pay off in Avengers: Infinity War. A hidden detail in Iron Man's original 2008 film was not spotted for over a decade. In Guardians of the Galaxy, scrambled Skrull text near Stan Lee's cameo spelled 'Excelsior,' his famous catchphrase, but took four years for anyone to decode. In Ant-Man, a silhouette in the Quantum Realm teased the original Wasp's survival, confirmed years later in the sequel. Marvel views these as long-term storytelling investments.