The clip that shows acrobats tumbling off a slowly turning staircase, dropping onto a hidden trampoline and floating back up to the steps is La Mécanique de l’Histoire (The Mechanics of History), a piece by the French artist Yoann Bourgeois. It was performed in 2017 inside the Panthéon in Paris, the domed monument where France buries its most honoured citizens. No computer effects are involved: what looks like slow motion is live bodies, a rotating set and very precise timing.
Below you can watch the film, then find out who made it, how the illusion works, why the building matters and what the piece is trying to say.
What you are watching
The set is a wooden staircase that turns on its axis, with a trampoline set into the floor at its centre. Four performers begin on the steps. One by one they climb, let themselves fall, disappear briefly below the stairs, and rebound so softly that they land back on a step as if gravity had been switched off for a second. The stairs keep turning, so the step they land on is never quite the one they left.
The rhythm is calm rather than showy. Nobody reaches the top for good and nobody stays down. As the film goes on the figures thin out, until a single performer is left on the staircase. Many viewers who first saw the clip assumed it had been slowed down or edited; the steady, unhurried rebound is exactly what makes it so hard to believe.
Who is Yoann Bourgeois?
Yoann Bourgeois was born in 1981 in the Jura region of eastern France and trained in circus arts at Châlons-en-Champagne, home of France’s best-known national circus school. He works on the border between circus, dance and theatre, and his pieces return again and again to the same few ideas: falling, balance, and the instant of suspension at the top of a bounce.
From 2016 to 2022 he directed the national choreographic centre in Grenoble, based at the city’s Maison de la culture. He was the first circus-trained artist to run one of France’s national choreographic centres. His company toured widely; Celui qui tombe (He Who Falls, 2014), in which performers try to stay upright on a huge tilting and spinning platform, played at the Barbican in London and at Tanz im August in Berlin. Later works include Minuit, shown at the Brooklyn Academy of Music, and a staging set to Debussy’s Clair de Lune.
The staircase-and-trampoline image became his signature. He has used versions of it in several settings over the years, including a 2018 performance in Madrid, but the Panthéon film is the one that travelled furthest online.
How the floating effect works
Three things make the illusion.
The trampoline does the lifting
The performers are not jumping from the stairs. They step off, fall a short distance onto a trampoline below, and let the bed return them upward. A practised acrobat can control the height of each rebound closely, so the peak of the bounce lines up with a step.
The top of the bounce looks slow
At the highest point of any bounce a body is momentarily almost still, before gravity pulls it back down. Bourgeois builds his choreography around that brief pause, the “point of suspension” that his work has explored for years. Because the performers arrive on the steps right at that moment, their landings look weightless rather than heavy.
The set keeps moving
The rotation does two jobs. It means each return lands on a different step, which suggests progress or loss, and it hides the mechanics: the eye follows the turning stairs and the calm faces rather than the trampoline. The soft, even movement of every performer completes the effect. It takes long rehearsal and real physical risk to make something this difficult look this easy, so it is not a trick to try at home on a garden trampoline.
Why the Panthéon matters
The location is part of the meaning. The Panthéon was designed by Jacques-Germain Soufflot and built between 1758 and 1790 as the church of Sainte-Geneviève, the patron saint of Paris. During the Revolution it was turned into a mausoleum for great citizens, and since 1881 that has been its only role. Voltaire, Rousseau, Victor Hugo, Émile Zola, Marie and Pierre Curie, Louis Braille, Jean Moulin and Simone Veil are among those buried there.
It is also a building with a famous connection to physics. In 1851 Léon Foucault hung a pendulum beneath its dome to show that the Earth rotates, and a copy still swings there today. Staging a work about gravity, rotation and history under that dome is hardly a coincidence.
The performance was part of the third edition of Monuments en mouvement, an annual programme that brings dance into historic monuments across France, and it was produced with the Théâtre de la Ville in Paris. The Panthéon itself is managed by the Centre des monuments nationaux, the state body that looks after many of France’s national monuments.
What the piece is about
Bourgeois leaves the meaning open, and viewers read it in different ways.
- History as a cycle. The title points here. People climb, fall and rise again, but the staircase keeps turning, and the effort never quite ends at the top. In a building full of the honoured dead, the climb can look like the way reputations, generations and regimes rise and fall.
- Effort and failure. Many people see a picture of ordinary life: trying, slipping, recovering. The striking part is that each fall leads straight to a return. Falling is part of the movement, not the end of it.
- Gravity and the body. Under Foucault’s dome the piece also works as a quiet physics lesson, showing a body suspended for a moment between rising and falling.
None of these readings is the official one. That openness is a large part of why the clip was shared so widely: everyone could project their own story onto those calm figures.
Credit, copies and a debate over originality
When the film went viral in autumn 2017, it often circulated on reupload pages without the artist’s name. If you share it, credit Yoann Bourgeois and the Panthéon production.
Questions of credit later became a story in their own right. In 2021 Bourgeois was publicly accused by several theatre and circus artists of borrowing from their work over the course of his career. He denied it, saying that what is original is “the treatment and the creative process.” The dispute is a reminder that circus and dance draw on shared techniques such as the trampoline, and that the line between influence and copying is often argued over in the arts.
Where to see more
If the clip caught your eye, look for full-length recordings of Celui qui tombe and other Bourgeois pieces, which show how the same ideas of falling and balance work over a whole evening. French monuments also continue to host dance and circus through public programmes, and these are often free or cheap, a good way to see a performance in a setting that adds its own layer of meaning.
Sources: The Kid Should See This: La Mécanique de l’Histoire by Yoann Bourgeois; Wikipedia: Yoann Bourgeois; Wikipedia: Panthéon; video shared via Tony Whitfield (YouTube) and Archilovers.
COMMENTS