Imagine a reactor uploads an eighteen-minute clip from a twenty-minute original, face cam in the corner, pausing a few times. The viewer gets the whole product plus commentary; the source link is optional. My opponent concedes the reliance gap but treats it as irrelevant. It isn't. Book reviews quote passages, not entire chapters, because quoting the whole thing substitutes for reading. The signpost defense works only when the sign is shorter than the road. When reactors routinely include nearly the full work, substitution is the genre's core, extra steps or not.