For all we’ve seen and heard about Thanos as, like, the biggest villain, like, ever, we really don’t know much about him in regards to the MCU. We know he was behind Loki’s initial invasion of Earth, but the Avengers don’t. We know he wants the Infinity Gauntlet to rule the Universe, but they don’t. We know the little shiny MacGuffins our heroes have been picking up here and there on their adventures are Infinity Stones, but they don’t. Which creates an interesting situation when it comes to how all of this is going to be revealed.