I'm very much a newcomer to the MCU (Marvel Cinematic Universe), so I've only seen two of the previous movies (the first Guardians of the Galaxy and Black Panther) and a highlight video before watching Infinity War on Sunday. While I have enough background to follow the story, I'm sure there are a lot of nuances I missed. In particular, since this movie focused on Thanos, I feel like I need to learn more about his motivations to understand some of the actions he took (or didn't take).
For starters, it seemed to me that once Thanos obtained the Reality Stone, he could have eliminated his opponents anytime he liked. If he could turn their weapons into bubble guns, there are definitely plenty of other ways he could have made his path to the rest of the stones much smoother. Maybe I don't know enough about the stones' power to understand what, if any, limits they have. It does seem to me that their power increases exponentially as you acquire more of them.
Another question I have about Thanos' actions was inspired by a discussion I saw on someone else's Facebook feed. If Thanos wants to kill off half of the universe's population so everyone else has enough resources, why not double the amount of resources instead? Or why not set a cap on the sentient population of the universe to be below the total carrying capacity? There are plenty of other, more compassionate ways you can solve this problem without causing such a massive amount of genocide--though then you wouldn't have a cinematic-worthy conflict. I think I heard a line in the movie about a similar mass murder on Titan, so perhaps Thanos is just repeating something from his personal experience.
For me, part of the reason I'm obsessed with analyzing Thanos is because he's such a powerful antagonist. As a writer, it's important for me to develop the villain's motivations and actions as much as the hero's. The line between hero and villain can be very narrow at times. Just as the hero gets funneled down a particular pathway during the course of a story, the same must happen to a villain. Sometimes the only difference between a hero and a villain is what the character learns over the course of a story and how that influences her final choice.
If you saw the movie, what did you think about it? Did you feel Thanos made a good villain? Feel free to share your thoughts in the comments.