Ars Electronica PRIX Submission  ·  Interactive Installation  ·  2026

Shared
Ground

The same place. Different histories. Two histories in a room — moving apart, the archive diverges. Moving together, something neither has seen before surfaces on the wall.

A platform for embodied collective memory.
The social geometry of bodies in space determines what history is visible.
First instantiation: McDonough, Georgia — Starr Photograph Collection, 1821–present.

Play documentation

Demo — move your cursor to carry one history through the space. A second history moves autonomously. Watch what the archive does when you approach or separate.

History A
History B
approaching — histories converging

The relationship between bodies determines what history is visible

One person enters the installation. A single thread of the archive surfaces — photographs of this place, from one vantage, one time. The experience is solitary, partial.

A second person enters. They move in the opposite direction. The archive diverges — two different histories of the same ground become visible simultaneously on the same walls.

They begin to walk toward each other. The system reads their approach. Photographs begin to surface that belong to both histories at once — moments where the two memories of a place overlap, contradict, or simply coexist.

A room full of people produces a configuration the archive has never shown before.

What this is not

This is not a history lesson. It does not explain or resolve the divergent histories it surfaces. It does not assign photographs to people based on identity.

The archive responds to movement and relationship — the physical geometry of how people occupy shared space together. What surfaces is a function of that geometry, not of who the people are.

The piece works in McDonough, Georgia. It works in New Orleans after a flood. It works in Detroit after the plants closed. It works in any place where two communities have lived on the same ground and remember it differently.

The photographs change. The logic stays the same.

In conversation with
Scott Snibbe, 1998
Boundary Functions
The space between bodies made visible as Voronoi divisions. Personal space exists only in relation to others.
Shared Ground departs: no divisions — only convergence
Camille Utterback, 2010
Shifting Time
One person's proximity to a wall controls temporal depth through archival footage. A single history navigates time alone.
Shared Ground departs: the relationship between bodies navigates the archive
Shared Ground, 2026
New territory
Multiple bodies. Multiple archives. The social geometry of the room — who is here, and how they move together — determines what collective memory surfaces.
The piece cannot exist with one person

First Archive — McDonough, Georgia — Starr Collection & Creek Nation records — 200+ photographs — 1821–present

Technical
Specification
Sensing
Overhead depth cameras — full body tracking, multi-person
Environment
4 to 6 wall projection, edge-blended, full room immersion
Archive logic
Social geometry engine — distance, direction, velocity between all bodies in space
Archive scale
200+ photographs per city, organized by emotional register not date
Sound
Ambient field recordings keyed to relational state — divergence, convergence, stillness
Platform
Portable — each city instantiation uses local archive, same underlying system
The platform — cities where Shared Ground can be instantiated
McDonough, Georgia — proof of concept
New Orleans, Louisiana
Detroit, Michigan
Tulsa, Oklahoma
Ferguson, Missouri
Standing Rock, North Dakota
Havana, Cuba
Belfast, Northern Ireland
your city →