If this works as advertised, it will be quite the design coup. France-based designer Julien Vidame has posted a link for his Extendable Table, which amazingly doubles its length (and halves its thickness) by an unspecified action that rotates each individual slat comprising the tabletop surface. While Vidame claims a prototype is available, no video exists; all we have to go on is the tiny GIF file below.
Anyone want to venture a guess on how this works? (My first thought was magnets, but that probably wouldn't jive with metal tableware.)