At Less Wrong, a blog devoted to rational thinking, Arjun Panickssery notes that English language sentences have gradually decreased in length. Jane Austen (1775-1817) wrote sentences that were on average 42 words long. The modern writer J.K. Rowling, on contrast, wrote the Harry Potter series with sentences about 12 words long.
Why has this changed?
Panickssery suggests a few possible causes. One is that journalists, who tend to have a terse style, inserted their writing norms into writing as a whole. Another is that much writing in the past was intended to be read aloud rather than silently, the latter of which emphasizes shorter sentences for clarity. Panickssery also suggests that writers learned a style derived from classical Latin works with very long sentences and the abandonment of this style led to reduced sentence lengths. Modern writers are taught to write with short sentences, whereas their predacessors were taught to write very long, complex sentences.
-via Marginal Revolution
