What happened differently in universe in the MCU that led to the creation of the Avengers and Thanos' absence in Raimi and Webb trilogies? Was it a single difference? A single choice? Or many? Do the Infinity Stones not exist (and therefore Earth is off the radar to most of the cosmic MCU?) Or perhaps Odin just hid the Tesseract elsewhere? Agamotto never came in contact with the Time Stone? Stark never invents arc reactor tech because his dad never studied the tesseract? The Red Skull never rose to power? Cap didnt need to save Bucky? Of course I'm just musing. Any other thoughts on what happened differently in each universe?