As part of their Forever!series, Dutch designers BCXSY have created the conceptual "Infinity Aquarium," a handcrafted glass polygon in which fish can swim in an endless loop. The tank is part of a collection that attempts to solve existential problems in design—i.e., defining the length of an eternity. (Other products in the series include "Destilled Nature," a vase for dead flowers, and the "Forever Dish," a plate molded with a ceramic sculpture of a steak dinner in its center.) The updated aquarium is certainly an improvement over the old model, even if the fish swimming in it are unlikely to notice the difference.

[BCXSY via Coolhunting]