A new MCU theory suggests that Your Friendly Neighborhood Spider-Man could provide the perfect explanation for Marvel’s multiverse designation confusion from 2023’s Spider-Man: Across the Spider-Verse. Marvel Studios began to explore the multiverse in Avengers: Endgame prior to the Multiverse Saga’s development, while Sony’s animated Spider-Verse franchise branched out into alternate realities in 2018’s Into the Spider-Verse. While this has been exciting, the introduction of wild parallel worlds has created some complex and confusing stories, but Marvel has a great way to clear up some discrepancies.