The Trend Killer
We now know the length of the Twitter lifecycle: 13 days.
On May 12, MarketWatch retweeted an article that had been published four months earlier (as well as previously tweeted). For its part, that article cited a Fidelity chart that had been printed six months previously. Twitter thundered. Within a week, the tweet's recommendation that Americans hold twice their annual salaries in retirement savings by age 35 had become so popular as to be an Internet meme.