+/// Movement Meta Event Injector:
+/// threshold number of movements within gran_duration*granularity seconds -> SomethingReallyIsMoving{True}
+/// No movement within 3 hours but movement within the last 6 hours -> SomethingReallyIsMoving{False}
+///
+/// Thus SomethingReallyIsMoving{True} fires regularly, but at most every gran_duration seconds
+/// While SomethingReallyIsMoving{False} fires only once to assure us that everybody might really be gone
+
+