Corbie said nothing for a time, briefly holding up a hand to beg a moment to think. It seemed to her that an answer well considered would go over better than an answer quickly given. "That's true," she said slowly. "But it can be hard to write, or rewrite, a symbol completely. Cultural weight means something. Personal connections means something. It's not always quantifiable, but it is there. If I already connect a symbol to something, I could theoretically use it to mean something completely different. But my thoughts would still be colored by that first idea."