[ Harold's used to and comfortable being an unremarkable IT manager, a role he's played many times. He'd been Harold Wren, nobody, at his own company for many years before John blew his cover there. (Something he's still a little annoyed about at times, but would never tell John now that their relationship has changed.) Yet at the same time he's an innately cautious person who is reluctant to step out of line and provoke suspicion without good cause, so it's unnerving to him and not a little scary to go around illicitly taking parts. He'd do it, of course, but Harold will readily pass that task off to others better suited to it if he can. ]

Smart and in some ways beyond me, [ Harold admits readily, rueful as he sits back to consider his laptop screen through his glasses. He's not ashamed to say he has no grasp on technology capable of producing a quantum rail and would have to start from near zero in his understanding. ]

For much of this we'll have to take Rex's word for his condition. I don't think we have the time to study his coding sufficient to form our own opinion.