When Avengers: Endgame felt like the craziest and biggest the MCU was going to get, then came the multiverse in phase four. One person who plays a pivotal role in developing such an expansive concept is Loki and Doctor Strange in the Multiverse of Madness writer Michael Waldron, as he has now explained how many of these new MCU projects not only intertwine with one another but stand on their own as well.