So, my understanding was that the questions of quantum cryptography stem from the fact that cryptographic algorithms designed to stump current computers will be a breeze for quantum computers, so new algorithms will need to be created to stump quantum computers. I thought that's what was referred to as "quantum encryption". Is there another name for what I'm thinking of?

But now they're saying that this "quantum encryption" they speak of will be "perfectly" secure? Does this mean that, once established, cryptography will no longer need to be a field of study?

Also this: "This solves the problem by embedding it in an extra abstract dimension, which is independent of space. So as long as both Alice and Bob know the way in which all these abstract dimensions are related, the third provides a reference against which measurements of the other two can be made." blows my mind. The fact that this "other dimension" stuff is no longer just speculation, but will soon be part of our lives.