The beauty of Shor's algorithm is that it shows how a quantum computer can solve a problem that is believed to be intractable for classical computers.
The string is a stark data structure and everywhere it is passed there is much duplication of process. It is a perfect vehicle for hiding information.
"What I need is the dandelion in the spring. The bright yellow that means rebirth instead of destruction. The promise that life can go on, no matter how bad our losses. That it can be good again."