Before revision:  and Twitter has been shown to enable certain kinds of prediction . Vitally, and absent from many standard corpora such as books and news archives, Twitter also encodes popularityand spreading through retweets .
After revision:  and Twitter has been shown to enable certain kinds of prediction . Vitally, and absent from many standard corpora such as books and news archives, sharing and commenting mechanisms are native to social media platforms, enabling us to quantify social amplification (i.e., popularity) of trending storylines and contemporary cultural phenomena .