I wonder whether anyone keeps track of how many times PVP has restructured its archives making old links invalid.

Saturday, at the suggestion of my new friend Jennifer Justice, I went bowling for the first time since – um – 1983?? Well, since 1997 at least.

The previous time, whenever it was, my knuckles ached. This time my hands were fine but my knees were unreliable. My last four balls were X X 0 0, for a final score of 82.

This may be of interest to only a few: Simplest Canonical Polyhedra of Each Symmetry Type (rotable in Java); in other words, canonical forms of the simplest topologies that allow the specified symmetries and none higher. Any convex polyhedron can be deformed into a “canonical” form whose edges are all tangent to a sphere; if a polyhedron is self-dual, it is canonical.

This collection could be considered a generalization of the set of all fair dice.

I reloaded MacOS, restored my home directory from backup, and was surprised to learn that I have 3e5 files. Most of the bulk is music, but that’s only 7e3 files. Is there a tool analogous to du that gives the number of files in each directory, rather than their aggregate size? —Later: When Apple Mail imported my Thunderbird archives, it made huge numbers of files, but I don’t know yet whether they’re enough to answer the question.

In other news, the medical jargon specimen of the week:

Infant is status post a negative rule out sepsis workup . . .

I guess that means sepsis was ruled out, rather than that it was not ruled out. The weird thing is that “rule out sepsis” is often listed as a diagnosis rather than a procedure.