Holographic stereograms have been around for a long time. Ten years or so in the commercial environment. Only recently has the technique been available to students and artists as a medium. The thought processes required to create these images are a combination of stills photography, animation and films (computer generated or otherwise).
I see them as captured moments as opposed to the 'decisive moment' of Cartier-Bresson. They are action in the sense that they are narrative, a sequence of events occurs - but they are also re-action in the sense that the viewer can play with these pictures visually and through physical action.
The message is that while life can be looked back on as a series of grand events or achievements it can equally, and with as much validity, be seen as a few, key small events that often, for me at least, are more relevant than the grand themes.