Swap published columns for 24 entries from random.md

Retract the seven published columns into drafts/ and promote the 24 per-date
entries split out of Notes/random.md. Bodies are verbatim; titles, subjects
and slugs are new.

Make publication a matter of location. Notes/Notes.11tydata.js gives anything
under Notes/ permalink: false unless tagged `column`; drafts/drafts.11tydata.js
renders drafts at their real permalink under `yarn dev` and excludes them from
collections entirely in a build, so no template can surface one. Publishing is
now `git mv drafts/<file> columns/`, and moving it back retracts it.

Untagged notes were previously rendered into _site/ and deployed — including
Notes/random.md, which was live at /Notes/random/.

columns/2026-07-27-frame-rate.md

@@ -0,0 +1,22 @@
+---
+title: Frame Rate
+date: 2026-07-27
+layout: column.njk
+tags: [column, computing]
+permalink: /columns/2026/frame-rate/
+---
+
+We think in Fragments
+
+We're back at mainframes and teletypes. An enormous offsite compute resource. You dial in with your client.
+
+The same practice - get your batch jobs ready to run overnight, over the weekend. Spend the daylight hours collaboratively tuning, refining, testing.
+
+The prep for the night to come, and for the day after, the next repeating link.
+
+And mistakes were expensive. Something faulted, the job failed overnight. You spend the next day(s) troubleshooting.
+
+Did it feel expensive back then? Or has the frame rate of our lives gotten so high that a span of days feels closer to eternity?
+
+
+every session branching through alternate realities - do you know when you're on the 'good timeline?' Do you know when you're not?