I don't know why but for some reason the Thanos one bugs me more, it feels more fundamentally wrong. Like I understand the flaws with the matrix, I went electrical engineering to software development, but to me I'm still willing to accept some wand wavy bullshit about how they need to harvest humans for power, more than I am that a population won't double immediately. Like the biology of consciousness and brains and electricity have a lot more room for complex weirdness than the weeds in my walkway always immediately regrowing.