[xelxebar]

Entangle the spins of two electrons; put one on Pluto and keep the other on Earth. How do you propose to send your FTL single bit?

The usual idea is that since "wave function collapse is instantaneous" we can measure the spin on Earth, collapse the superposition and then Pluto can "notice the collapse".

However, there's no way to notice that entagled particles have decohered without looking at both of them side by side. Or said another way, the entire planet Earth could be entagled with some giant blob of matter in an alien lab in Andromeda, but we have no way of discovering this without comparing Earth matter with the alien lab matter.

I've got my unreasonable hopes pinned on some incarnation of the Alcubierre Drive. Just gotta find that negative energy density first :)