See, I loved Tithonus, I thought it was a very creepy tale , and I think Scully's 'death' is one of the most potent scene I've seen on the show. I mean you can see the life fading from her frikkin' eyes! How does an actor do that???

This said I agree that the ending smacked of lazy writing and I agree with your Clyde Bruckman's theory. That he would mean she survives her cancer makes sense.

But I'm glad this "Scully is immortal" trope exists, because if it hadn't, Penumbra wouldn't have written Fathoms Five, which is amazing stuff.