It seems reasonable that we have a linguistic fingerprint, although 1) there are far fewer of them than finger fingerprints, 2) they're easier to fake. It's probably not much of a stretch to take that software that "identifies bundles of linguistic features, hundreds in all" and use the data to automatically modify my writing to look like someone else's.
via schneier.com
Back in my day, there were those in college who might have someone write a paper for them--for a small fee, of course. Does this mean that now you could write one paper, run it through the "Writing Style Personalizer 3.5" software and pump out multiple versions? Think of the money you could...I mean, think of how wrong that would be.
