By, written 2023-170, revised 2024-175 (9 revisions)

These are the kind of thing some would also call blog-posts or essays.

Select tags to filter documents by topic.

Replace .html in a URL with .., .md, or .pdf for each document's corresponding metadata file, Markdown source, or PDF version, respectively.

I have removed from the index some old documents which I deem low-quality or largely false. You can still access them by URL, if you found them earlier.