JetScootr's Journal: Quantum entanglement and encryption.

Something has occurred to me while reading this Ars article on the "quantum crack that wasn't".
Everyone is gaga over the 'fundamental security' of quantum encryption systems, due to insurmountable quantum effects.
My thought is based on 'scientific philosophy', that is, unproven conjecture that sometimes leads to enlightening insight or new principles.
Larry Niven's ringworld science fiction series (and the shorts that led up to it) include a perfect force field as a device. It is perfectly reflective, perfectly immune to all effects of this universe, hence, not even time takes place inside it. In one story, live aliens from a billion years in the past came out of two such deactivated fields. (See "World of Ptaavs"). Here's the thought that Larry expresses: Everything in this universe affects everything else, however minutely, so the only perfect force field is one that puts the protected object(s) outside the universe.
The universe can be viewed as a massively-entangled set of particles whose basic 'knowability' results in the flow of time. Boy, I hashed that thought something awful. That is, it is impossible to quantumly entangle just two photons - the whole universe is involved, and can't be excluded. My conjecture: Eventually, a way to 'add' an entangled particle to a quantum security system will be discovered that will enable nearly-undetectable eavesdropping on a quantum data stream. "Nearly" undetectable, because it will also be vulnerable to the exact same effect.
And so the crypto-security arms race will continue forever...