I argue that the presentation of an event cannot be shown, but must show itself. The event shows itself as the limit to, that is, in excess of, all signifying practices.
As exemplars in the project of thinking at the limit of metaphysics, Marion and Badiou offer sustained investigations of what Jean-Luc Nancy (1993) once called “the birth to presence.”
See also
https://www.beyng.com/papers/Gatherings2011-02Polt.html
https://heidegger-circle.org/gatherings/
The symbolic equals the signification chain. In excess of signification equals the event, and means exactly escape (lines of flight) from the signification chain, and the symbolic. You can bet that the event is not only imaginary. So, the event, if it is worth its name, must be real.