> Scientists have long suspected that transcription may go awry with aging, but the new study offers proof that it doesn’t—with a twist. In all five of the species tested, as the organism grew older the process surprisingly sped up. But like trying to type faster when blindfolded, error rates also shot up.

I got incredibly annoyed at this piece of writing, and the article as a whole, trying to make it "fun and exciting" to the detriment of being clear. In the case of this particular problem, the short of version is "as individuals grow older, transcription speeds up, which leads to increased error rates". There is no "twist" - the process does indeed go awry.