This text addresses the ontological problem regarding the end of a "true" event, examining its status once its future potential has been exhausted and its past fully realized. The author explores what remains of an event when it is considered in total isolation from its environment and context. The central argument posits that such an isolated event, termed a "virtual" event, leaves no trace and effectively disappears as if it had never occurred. This state of isolation precludes any possibility for an observer to relate to the event, drawing a parallel to Kant's concept of the "thing in itself." However, the author suggests that the problem of the thing in itself may be a false one, asserting that nothing can exist "in itself" except for virtual particles or quanta. The reflection thus emphasizes that real existence and intelligibility are fundamentally dependent on an event's integration into broader contexts and relationships with other events.