[grantmnz]

If you go to mapofcpan.org and click on "Need more help?" it explains more about what the map is showing you.

Only namespaces that contain 30 or more distributions get a colour and a label - to keep the map from getting too cluttered. The remaining modules are submerged under the light blue "primordial soup".

Since the individual distributions are arranged alphabetically and laid out along a Hilbert curve, adding an extra distribution to 'Acme' pushes every other namespace along.

And yeah - the Hilbert curve probably isn't ideally suited to being animated :-)