If you want to quibble, there *was* blood on the knife. Still, I think the true nature of the boy is irrelevant. Real or manifestation, the boy was real to Cavil -- and that's all that matters, symbolically at least. And yes, I get that the boy represents the last hope for redemption, for humanity within that particular version of Cavil. Still, it's a kitschy development, done more for, in my opinion at least, shock value than anything else (like the gratuitous nudity). Like I said, I get the symbolism, but it seemed disingenuous to me. I'd have had more respect for the film had it taken on a Of Mice And Men or "To A Mouse" tack, detailing how the "The best laid schemes o' mice an' men / Gang aft agley." But this wasn't even the "best laid schemes." It was, simply, the desperate ad-hoc plots of a cookie-cutter evil-guy who, despite the natural charisma of Dean Stockwell, was nowhere near as entertaining or compelling as John Colicos's Baltar who was, at the very least, unabashedly a cookie-cutter madman villain.