Wikipedia Work Slows

For various technical reasons, Wikipedia has not compiled statistics on the English version for about a year, now. However, someone decided to analyze log files and the edit histories of 6% of all 118,793 articles - which, if taken completely at random, would be a statistically significant cut. The result? The rate of edits peaked in April 2007 and have been declining since. This is apparently a big difference, as edits had before been climbing exponentially. Article creation topped out in early 2006. Does this mean we've come to the end of human knowledge, or is it a case of all the knows that's fit this print?