"Which is part of what's confusing me -- nobody else has heard of it either," Kaidan says, one corner of his mouth quirked. "I'd heard of wormholes -- what they use for interstellar travel here -- and warp bubbles as theories, even if we went down another road, but nobody else has heard of the mass effect. I'd think I was going crazy, if I didn't know better."

Of course, if he was going crazy, would he know better? Kaidan runs aground on this thought, by his expression.