diff --git a/tests/vault/gear/block-flow-test.cpp b/tests/vault/gear/block-flow-test.cpp
index cf5c6c7cc..1cad97d90 100644
--- a/tests/vault/gear/block-flow-test.cpp
+++ b/tests/vault/gear/block-flow-test.cpp
@@ -205,17 +205,79 @@ namespace test {
       
       
       /** @test TODO place Activity record into storage
-       * @todo WIP 7/23 ⟶ 🔁define ⟶ implement
+       * @todo WIP 7/23 ⟶ ✔define ⟶ 🔁implement
        */
       void
       placeActivity()
         {
+          BlockFlow bFlow;
+          
+          Time t1 = Time{  0,10};
+          Time t2 = Time{500,10};
+          Time t3 = Time{  0,11};
+          
+          auto& a1 = bFlow.until(t1).create();
+          CHECK (watch(bFlow).allEpochs() == "10:200"_expect);
+          CHECK (watch(bFlow).find(a1)    == "10:200"_expect);
+          
+          auto& a3 = bFlow.until(t3).create();
+          CHECK (watch(bFlow).allEpochs() == "10:200|10:400|10:600|10:800|11:00"_expect);
+          CHECK (watch(bFlow).find(a3)    == "11:000"_expect);
+          
+          auto& a2 = bFlow.until(t2).create();
+          CHECK (watch(bFlow).allEpochs() == "10:200|10:400|10:600|10:800|11:00"_expect);
+          CHECK (watch(bFlow).find(a2)    == "11:600"_expect);
+          
+          Time t0 = Time{0,5};
+          
+          auto& a0 = bFlow.until(t0).create();
+          CHECK (watch(bFlow).allEpochs() == "10:200|10:400|10:600|10:800|11:00"_expect);
+          CHECK (watch(bFlow).find(a2)    == "10:200"_expect);
+          
+          BlockFlow::AllocatorHandle allocHandle = bFlow.until(Time{300,10});
+          for (uint i=1; i<Epoch::SIZ(); ++i)
+            allocHandle.create();
+          
+          CHECK (allocHandle.currDeadline() == Time(400,10));
+          CHECK (not allocHandle.hasFreeSlot());
+          
+          auto a4 = allocHandle.create();
+          CHECK (allocHandle.currDeadline() == Time(600,10));
+          CHECK (allocHandle.hasFreeSlot());
+          CHECK (watch(bFlow).find(a2)    == "10:600"_expect);
+
+          for (uint i=1; i<Epoch::SIZ(); ++i)
+            allocHandle.create();
+          
+          CHECK (allocHandle.currDeadline() == Time(800,10));
+          
+          auto& a5 = bFlow.until(Time{220,10}).create();
+          CHECK (watch(bFlow).find(a5)    == "10:600"_expect);
+          
+          allocHandle = bFlow.until(Time{900,10});
+          for (uint i=1; i<Epoch::SIZ(); ++i)
+            allocHandle.create();
+          
+          CHECK (not allocHandle.hasFreeSlot());
+          auto& a6 = bFlow.until(Time{850,10}).create();
+          CHECK (watch(bFlow).find(a6)    == "11:150"_expect);
+          CHECK (watch(bFlow).allEpochs() == "10:200|10:400|10:600|10:800|11:00|11:150"_expect);
+          
+          auto& a7 = bFlow.until(Time{500,11}).create();
+          CHECK (watch(bFlow).find(a6)    == "11:600"_expect);
+          CHECK (watch(bFlow).allEpochs() == "10:200|10:400|10:600|10:800|11:00|11:150|11:300|11:450|11:600"_expect);
+          
+          bFlow.discardBefore (Time{999,10});
+          CHECK (watch(bFlow).allEpochs() == "11:00|11:150|11:300|11:450|11:600"_expect);
+
+          auto& a8 = bFlow.until(Time{500,10}).create();
+          CHECK (watch(bFlow).find(a6)    == "11:150"_expect);
         }
       
       
       
       /** @test TODO load based regulation of Epoch spacing
-       * @todo WIP 7/23 ⟶ define ⟶ implement
+       * @todo WIP 7/23 ⟶ 🔁define ⟶ implement
        */
       void
       adjustEpochs()
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 16812227c..289a7fd36 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -78885,25 +78885,28 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689199616791" ID="ID_752152349" MODIFIED="1689200031345" TEXT="placeActivity">
-<icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689202512708" ID="ID_101278669" MODIFIED="1689202518059" TEXT="in leeren BlockFlow">
+<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1689199616791" ID="ID_752152349" MODIFIED="1689303038986" TEXT="placeActivity">
+<icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1689202512708" ID="ID_101278669" MODIFIED="1689303033032" TEXT="in leeren BlockFlow">
+<icon BUILTIN="pencil"/>
+</node>
+<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1689202522354" ID="ID_523714574" MODIFIED="1689303033031" TEXT="f&#xfc;r Vergangenheit">
+<icon BUILTIN="pencil"/>
+</node>
+<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1689202560123" ID="ID_827332375" MODIFIED="1689303033031" TEXT="zu bestehenden Epochen">
+<icon BUILTIN="pencil"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689303110181" ID="ID_97036563" LINK="#ID_1494295782" MODIFIED="1689303132165" TEXT="brauche Diagnostic f&#xfc;r die reale Epochen-Zuordnung">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689202522354" ID="ID_523714574" MODIFIED="1689202553439" TEXT="f&#xfc;r Vergangenheit">
-<icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689202560123" ID="ID_827332375" MODIFIED="1689202571882" TEXT="zu bestehenden Epochen">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1689202576227" ID="ID_1382030737" MODIFIED="1689303033031" TEXT="in die Zukunft">
+<icon BUILTIN="pencil"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689202576227" ID="ID_1382030737" MODIFIED="1689202581299" TEXT="in die Zukunft">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1689202597977" ID="ID_1853102157" MODIFIED="1689303033030" TEXT="Overflow zu n&#xe4;chster Epoche">
+<icon BUILTIN="pencil"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689202597977" ID="ID_1853102157" MODIFIED="1689202608256" TEXT="Overflow zu n&#xe4;chster Epoche">
-<icon BUILTIN="flag-yellow"/>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689202609159" ID="ID_985814955" MODIFIED="1689202622069" TEXT="Overflow zuk&#xfc;nftige Epoche">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1689202609159" ID="ID_985814955" MODIFIED="1689303033030" TEXT="Overflow zuk&#xfc;nftige Epoche">
+<icon BUILTIN="pencil"/>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689203745600" ID="ID_838958031" MODIFIED="1689203950019" TEXT="adjustEpochs">
@@ -79993,7 +79996,7 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1688554963598" ID="ID_708490850" MODIFIED="1688554971708" TEXT="F&#xfc;llstand der Epoche">
 <icon BUILTIN="flag-yellow"/>
 <node CREATED="1688554972581" ID="ID_278561305" MODIFIED="1688554979689" TEXT="wird auch im EpochGate abgelegt"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1688777569396" ID="ID_1723162290" MODIFIED="1688777606098" TEXT="schwierig... Platz fehlt">
+<node BACKGROUND_COLOR="#e0ceaa" COLOR="#690f14" CREATED="1688777569396" ID="ID_1723162290" MODIFIED="1689303080773" TEXT="schwierig... Platz fehlt">
 <icon BUILTIN="messagebox_warning"/>
 <node CREATED="1688777608247" ID="ID_459855386" MODIFIED="1688777620049" TEXT="Activities sind bewu&#xdf;t sehr knapp bemessen"/>
 <node CREATED="1688777622037" ID="ID_900655074" MODIFIED="1688777808298" TEXT="die beiden Felder vom Gate werden hier definitiv ben&#xf6;tigt">
@@ -80010,13 +80013,13 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <arrowlink COLOR="#537a8e" DESTINATION="ID_253828146" ENDARROW="Default" ENDINCLINATION="399;21;" ID="Arrow_ID_1328212863" STARTARROW="None" STARTINCLINATION="508;-25;"/>
 <icon BUILTIN="info"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1688777811931" ID="ID_1249055593" MODIFIED="1688855648245" TEXT="bleibt nur der next-Pointer....">
+<node COLOR="#435e98" CREATED="1688777811931" ID="ID_1249055593" MODIFIED="1689303078316" TEXT="bleibt nur der next-Pointer....">
 <linktarget COLOR="#5d59c8" DESTINATION="ID_1249055593" ENDARROW="Default" ENDINCLINATION="-17;-67;" ID="Arrow_ID_246272817" SOURCE="ID_250176571" STARTARROW="None" STARTINCLINATION="115;9;"/>
-<icon BUILTIN="flag-yellow"/>
+<icon BUILTIN="idea"/>
 <node COLOR="#5b280f" CREATED="1688777836110" ID="ID_526522381" MODIFIED="1688777868460" TEXT="schwierig... soll ich den jetzt &#xbb;umfunktionieren&#xab;?">
 <icon BUILTIN="button_cancel"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1688777870348" ID="ID_573178945" MODIFIED="1688777913750" TEXT="nein: sauber ist nur ein  Pointer (auf den n&#xe4;chsten freien Slot)">
+<node COLOR="#435e98" CREATED="1688777870348" ID="ID_573178945" MODIFIED="1689303072133" TEXT="nein: sauber ist nur ein  Pointer (auf den n&#xe4;chsten freien Slot)">
 <icon BUILTIN="yes"/>
 </node>
 <node CREATED="1688777914661" ID="ID_1672637364" MODIFIED="1688777925779" TEXT="das l&#xe4;uft auf sowas wie einen Iterator hinaus">