On May 14 of 2006, at the Door of No Return of the House of the Slaves, again with the control of Joseph NDiaye, curator of the House of the Slaves, it was measured the advancement of the sea erosion in front to the Door of No Return. The measurement  was also symbolically performed by Assane Mbaye and Sandro Dernini with a 623 feet long roll-meter made by 418 digital art contributions, reproduced in A3 size, arrived to the Plexus Virtual Gallery from artists around the world. Then, the long art roller meter was exhibited at the 3° Triangle of Art Festival of the Medina, within the Biennale DakArtOff, together with the data and documentation made in Goree.