Today I Am Paul might be my favorite of the Nebula 2015 short story nominees so far. It's a nice little story about a robot doing Alzheimer's care in the future. Possibly the rather near future, the author would have been aware that this is being tested. It's well told and all, as an editor I would be encouraging and give it 3 stars.
But if you really want a good story of this very kind, try Itsy Bitsy Spider.