If anything, it explains his ability to recognize when she's switched her perfume, when she's using a different kind of shampoo. She'd initially chalked it up to his body making up for its lack of sight with other senses, but she'd underestimated the degree to which his other senses are overcompensating.

"And you can do all of those things now - or can't you?" she asks, pulling her hand back from his temple - although it still rests on his shoulder, light and constant. She's heard of the island taking away, but she's never had any abilities to lose personally.