diff --git a/src/test/access.test.ts b/src/test/access.test.ts
index 99e2290..84f447e 100644
--- a/src/test/access.test.ts
+++ b/src/test/access.test.ts
@@ -84,11 +84,31 @@ describe("the table", () => {
     assert.equal(capabilitiesFor("god").officeDepth, "full");
   });
 
-  it("keeps the instruments god-only and the feeds off the anonymous path", () => {
+  it("keeps the instruments god-only", () => {
     assert.equal(capabilitiesFor("member").timeControl, false);
     assert.equal(capabilitiesFor("member").debug, false);
     assert.equal(capabilitiesFor("god").timeControl, true);
-    assert.equal(capabilitiesFor("anon").liveData, false);
+  });
+
+  /**
+   * The sky is public, and this test exists because it briefly was not.
+   *
+   * `liveEnvironment` was once `tier !== "anon"`, on the reasoning that live
+   * feeds are what an account buys you — and the field's own note records why
+   * that did not survive contact with the data: the cloud cover over San
+   * Francisco is a government observation and the aircraft are broadcasting
+   * unencrypted to anyone with a forty-dollar receiver. Neither is a thing an
+   * account can grant access to, because neither is withheld from anybody. What
+   * the gate cost was the first impression — fog rolling off the Pacific onto a
+   * city you recognise, at the real time of day — traded for a rule with nothing
+   * behind it. Pinned here so it does not get re-argued from first principles.
+   */
+  it("offers the real sky to a visitor who has not signed in", () => {
+    assert.equal(capabilitiesFor("anon").liveEnvironment, true);
+    // Markers are asked for by everyone and granted by the server. Setting this
+    // true against a deployment set to `members` earns a 401, which is the only
+    // place that decision can actually be enforced.
+    assert.equal(capabilitiesFor("anon").liveMarkers, true);
   });
 });
 
@@ -131,8 +151,8 @@ describe("a deployment that says it has auth", () => {
       deployment({ "/health": sso, "/session": () => json({ authenticated: false }) }),
     );
     assert.equal(access.tier, "anon");
+    // The office is the thing a session changes. The sky is not — see above.
     assert.equal(access.can.officeDepth, "public");
-    assert.equal(access.can.liveData, false);
   });
 
   /**