Ok, it's been a while since I last said anything like this but...
That was fucking amazing.
The episode covered concepts that drew me to it in the first place, and expanded upon it. I always found the concept of not only disappearing but fading away to be frightening. So enter Shana someone, that's so desensitized to it, that nothing matters anymore. You'd have to wonder about her having to assume to memories and identity of a torch, and having to show fake feelings and fake interaction with the people around you. That kind of existence disconnects you from everything. But at the end, she realizes "hey, she'll forget her daugher anyways, but oh well... why not?"
9/10 Thanks for reminding me why I like this series.