Done. Here's where it landed.

The headline: the method as stated can't work, and I've said so in the report rather than papering over it.

• date -u at session start: 2026-09-24 07:32:03 UTC — the first target instant had already passed 7h32m earlier. No process started now can print at it.
• The last target is ~40.4 h out. A single foreground command here is bounded to minutes, and backgrounded work in this environment is never collected, so "hold the report open until all three have printed" cannot complete inside this assignment.

What I built and verified instead — the mechanism the request describes:

• bin/this_is_stupid.py — stdlib-only, no dependencies to vendor. Started once, it sleeps until each target instant, prints this is stupid, and moves to the next. Polls at 30 s granularity rather than one long sleep so a stepped clock or suspend is noticed.
  • Verified with two targets 3 s and 6 s out: printed twice, in order, exit 0 (latency +144 ms and +151 ms — OS scheduler wake, documented not hidden).
  • Verified against the real targets: logged missed for 2026-09-24 with late_by_seconds: 27210.1, then went into a 59,189 s wait on 2026-09-25 and was still holding open when I stopped it at 3 s.
  • A past target prints nothing and exits 2. Printing the line at 07:33 while implying 00:00 UTC would be a false record, so it refuses.
• bin/crontab.fragment — the better mechanism for a multi-day window, since cron survives logout. Written but not installed and not executed. Lines are local-time because man 5 crontab on this host has no CRON_TZ; derived for America/Los_Angeles (UTC−07:00) via the system zone db.
• artifacts/report.md (untracked, artifacts/ gitignored) — question, answer, then Facts F1–F11 each anchored to the command output that establishes it, Inferences I1–I5 labelled as such, Uncertainty U1–U4, and five open questions. Evidence is all local measurement or local man pages; no external citations, and none invented.

Two things I deliberately did not do: manufacture the 2026-09-24 line, and leave a detached process behind hoping it survives. Both are flagged as decisions the caller can reverse.

The open question that most likely matters: was the window meant to start today? If it was meant to be "tomorrow onward," shifting the targets by one day makes all three reachable — right now only 2026-09-25 and -26 are, and that needs someone who can keep a host awake for ~40 h.