More Words, Deeper Hole

The video game Mass Effect had fun with that; the introduced "Element Zero" that did wonky things to how mass and inertia tie together; this "mass effect" can be manipulated by electromagnetism. Charge it up enough and you remove inertia from matter; *poof* there's your FTL.

Then a hazmat accident* released Element Zero into Earth's atmosphere and children born with sufficient concentrations of E0 in their CNS got the ability to play with gravity; voila, a fig-leaf placed on psi-powers.

-- Steve enjoyed the game as a nice tribute to SFnal classics** without particularly worrying whether the physics was internally consistant. Think of it as a modern Flash Gordon, but not quite so campy and some interesting ethical questions hidden within.

* that in-game conspiracy theorists propose wasn't an accident and was instead a deliberate experiment on the population

** others thieved were artifacts of ancient cultures (Charon, for instance, was a mass effect relay station (think jumpgate) abandoned long enough to accrete an icy debris shell) and the Ancient Menace (the Reapers) come to return.