A growing Marvel theory suggests The Fantastic Four: First Steps owes its Galactus storyline entirely to the events of Loki season 2. The trailer for the MCU timeline’s long-awaited Fantastic Four reboot teases the arrival of one of the MCU’s most terrifying cosmic threats, and theories are already connecting the dots back to the iconic Marvel series. If true, this theory brilliantly links two of the most important chapters in Marvel’s multiverse saga – and helps explain why the Galactus storyline is only happening now.