York opens his eyes again when Carolina stops touching him, and something about her expression has him holding her hand a little tighter. "Epsilon...? Wash still hasn't told me what happened." He doesn't ask how Carolina wound up with him, though, her tone clearly stating she's not up for talking about it. Instead he just tries to explain as best he can, from his work in the neurology lab. "We think it's the implants. Mine's deactivated and my brain isn't too happy about it. I'd probably have wound up in a holding cell going crazy if Ratchet hadn't looked after me."