Two findings, and the first is the kind a person does not catch.
The article cache keyed on `${name}\0${qualifier}` — with the null byte written
into the file rather than escaped into the string. Git calls a file with one of
those binary and stops diffing it, and every editor between here and a reader
does something different with it. The separator was the right idea, because a
name can contain a space and `("Kepler-22 b", none)` and `("Kepler-22", "b")`
are different questions; it just has to be spelled `\0`.
And `navigator.language` is optional in the DOM's own typings and missing in
some embedded engines, where splitting it would have thrown on the first press
of About rather than falling back to English.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016jxMkwA2rbicdGxHosecYi
Every figure this map shows is a measurement or something derived from one,
and it says which. What it could not do was tell you what a place is — a
radius and an eccentricity do not say that Titan is the only moon with a dense
atmosphere. An About control on a body's panel now fetches the Wikipedia lead,
and it is labelled as what it is: prose from another site, credited and linked
back, below the line where this map's own figures end.
Only on the press. Nothing is fetched while a body loads, and nothing is
fetched twice.
Three things the encyclopedia does that had to be handled, all found by asking
it rather than by guessing:
It redirects, generously — "Proxima Cen b" lands on "Proxima Centauri b" and
"Kepler-22 b" on "Kepler-22b" — so the catalogue's own names can be sent as
they are, with no mapping table to maintain.
It disambiguates. "Titan" is a list of everything called Titan, and so are
"Mercury" and "Io". Wikipedia says so in the response, and this app happens to
know the kind, so a disambiguation is retried as "Titan (moon)". Only in
English: every wiki words its own qualifiers, and inventing a translation of
one would be inventing an article title.
And it rate-limits, which it did to me while I was checking the above. A
refusal to answer is not an empty answer, so the two are separate outcomes:
"Wikipedia has no article on this" is about the world, "Wikipedia could not be
reached" is about this minute — and only the first is remembered, so a second
press is allowed to try again.
The extract is capped and scrollable. A lead can run a dozen lines, and this
panel is anchored to the top of a viewport that may be shorter than the prose.
Verified: build clean, 606/606 unit including twelve for the lookup chain, 16/16
end-to-end including three that stub the encyclopedia — this suite tests the
panel, not Wikipedia — design detector clean, and the real thing exercised by
hand against Earth, Titan and Proxima Cen b at three viewport sizes.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016jxMkwA2rbicdGxHosecYi
SenrokaiandClaude Fable 5