"It must." Raine folded her arms, frowning at the barrier. "Perhaps the obvious conclusion is to assume it uses the kinetic energy to reinforce itself. That alone wouldn't be enough to power it, of course, but it would certainly be a tidy way to deal with projectiles. If it does that to physical force, however... hm."

She glanced aside again, to Tazendra. "You said you'd been interested in this. Have you had much of a chance to investigate?"