I feel like it just isn't that interesting if there are "miniscule but measureable changes" beyond a platonic ideal of self. Removing my minor back pain, or if

I feel like it just isn't that interesting if there are "miniscule but measureable changes" beyond a platonic ideal of self. Removing my minor back pain, or if I stopped drinking coffee, or a hundred other things would have larger-than-minuscule change on my personality but it's still "me".