How the collection connects.
The collection's three facets are nested but not tidy: a category belongs to several domains and a tag to several categories. Walk them one column at a time and each step narrows what the next can offer.
25 broad domains · 692 categories · 2,481 tags across 1,255 explanations.
Choose a domain to see what it is talked about in terms of, then a category to see which mechanisms recur there. Every name is a live filter into the shelf. Mechanism tags — the controlled first slot — are marked.
Broad domain
Category
Pick a domain on the left.
Tag
Pick a category in the middle.
Counts are explanations, not links: an explanation carries one domain, three categories and three tags, so the columns to the right of a selection add up to more than the selection itself.