Meanwhile, exciting news from the twin worlds of toys and theoretical mathematics:
A 4D puzzle! Because after all, 3D is really in right now, and 4D - well, that must be one better! I wonder what the fourth dimension in which this eighteen piece plastic model of a clownfish exists is? Hopefully, the makers mean that they have discovered a method of imbuing this plastic fish with an extra coordinate axis, orthogonal to the other three, allowing it to inhabit a previously purely abstract geometric reality, all whilst maintaining its famously Highy Detailed Finish. On the other hand I'll be a bit disappointed if it just means that the fish exists in time. Like the Archers.