A Sequence of Lines Consecutively Traced by Five Hundred Individuals is an online drawing tool that lets users do just one thing - trace a line. Each new user only sees the latest line drawn, and can therefore only trace this latest imperfect copy. As the line is reproduced over and over, it changes and evolves - kinks, trembling motions and errors are exaggerated through the process.

Clement Valla
2010
http://clementvalla.com/index.php?/work/line-trace/