- Location
- Liverpool
Sure what Ami thinks kei's best interests are will be different than what others think they are. Ami is smart though, so her idea of kei's best interest are the best idea. Above even what kei thinks her own best interests are. Although Ami being wrong about keeping distance with kei during chuunin exams is one ping against her
edit:
now that i think about it. kei would be willing to die for uplift. even if kei might start hating hazou due to family drama like what happened with mari, i don't expect her conviction in uplift to change. so ami acting in kei's best interest means acting in uplift's best interests, even if not necessarily in hazou's best interests. so we should trust ami too.
on the other hand, although ami is helping uplift (like AMITY) she's not optimizing for it. if she were optimizing for it, she wouldn't be having fun. since having fun means you haven't devoted all your energy to optimization. but kei if asked would not want ami to optimize for uplift at the expense of being depressed so that explains itself.
if ami was optimizing for uplift over kei's life. she wouldn't try to kill mari. because that would hurt uplift. unless she thinks kei is so much better for uplift than mari that the chances that kei cause kei to die cause expected value to prefer certainty of killing mari. but ami might have been just speaking emotionally instead of rationally with hazou at that time. kei was able to convince ami to not do stuff and her arguments were just a subset of hazou's. or if she was speaking rationally with hazou, making speaking with kei made her emotionally/irrationally prioritize kei's feelings over kei's best interests.
Having fun is part of optimization if your net productivity from improved regular R&R increases due to better self-care. And it's definitely part of the optimization if it keeps you from snapping and giving up, or going Bad Ending.