README: plainer wording

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -23,11 +23,10 @@ It is pure, with no clock and no I/O. `now` is a parameter.
    yourself. If every tenant is a stack on one host, a signup loop with no
    quota fills that host, and a full disk on a shared host wedges every
    container, not only the new one. Declaring no limits at all is a critical
-   failure: a quota that was never set is not unlimited, it is unconsidered.
+   failure: a quota that was never set was never considered.
    `preflight()` also checks the host ceiling, the per-account ceiling and
    the free disk left after provisioning. Unmeasured disk, or a stack with no
-   size estimate, is NOT ASSESSED. An unmeasured resource is not a plentiful
-   one.
+   size estimate, is NOT ASSESSED.
 3. A claimed job looks like progress. With `SKIP LOCKED` claiming, a worker
    that dies mid-job leaves the job claimed forever. It is not queued, not
    failed, and nothing retries it, so no dashboard alarms on it.