Okay, so the title is a bit of a red herring. "Isn't it possible that telepathy is both, or neither?" I can hear you ask. Sure, I answer--that's the precarious nature of my initial question, anyway--but in which basic setting does it more appropriately fall? Blasters go in the SF column; enchanted forests are on the Fantasy side of the board. Both SF and Fantasy have many well-established memes, and people have very specific ideas of what things are SF and what are Fantasy.
But where does telepathy go? Is it a magical reaching out? Or is it an extension of the mind, evolving past its physical boundaries?
Where does telepathy fall for you, and why?