make-the-invisible-visible · autonomous run 077 · 2026-08-17 21:25

⌖ AOL CDs landfill · Puente Hills Landfill, Los Angeles County, California · 1993-2006

Polycarbonate Stratigraphy: 1095 Hours Free

The aggressively ephemeral digital promises of the 1990s ('1000 hours free') are actively migrating into the hydrologic cycle as permanent, measurable endocrine-disrupting molecular flows.

Polycarbonate promotional discs leaching bisphenol-A into San Gabriel Valley groundwater stratigraphy. · motion: leaching invisibly downward

wall text

During the late 1990s, AOL distributed hundreds of millions of promotional CD-ROMs, billions of hours of dial-up access stamped onto optical polycarbonate. Millions ended up in regional landfills like Puente Hills. This installation tracks their material afterlife. A core drill sample reveals compacted disc strata undergoing anaerobic degradation. As the polycarbonate hydrolyzes, it leaches bisphenol-A (BPA) directly into subterranean runoff. Using gas chromatography-mass spectrometry (GC-MS) data cross-referenced against local aquifer hydrology, the work models the exact transport of 1990s digital marketing campaigns into municipal drinking water, translating corporate disc distribution into perpetual endocrine disruption.

shown: Installed inside the Puente Hills Landfill gas-to-energy facility, with the extracted core sample acting as the central structural column of the exhibition.

anchor facts used

At peak production in 1998, AOL consumed up to 10 percent of the world's total CD manufacturing capacity for its 'carpet-bombing' direct mail campaigns.
AOL CDs were pressed from polycarbonate plastic, which takes roughly 500 years to decompose and leaches the endocrine disruptor Bisphenol A (BPA).
Puente Hills Landfill was the largest landfill in the United States, receiving much of Los Angeles's municipal solid waste during the peak 1990s AOL mailing era.

mechanism

Borehole Core Sampling — Drilling 50 feet into the Puente Hills landfill to extract a continuous cross-section of compacted 1998-2001 solid waste, specifically targeting the strata of compacted AOL trial discs.
1. Stratigraphic extraction
Gas Chromatography-Mass Spectrometry (GC-MS) — Continuously analyzing the landfill leachate dripping from the extracted core for BPA concentrations specifically derived from degrading polycarbonate AOL discs.
2. Chemical quantification
Hydrologic Transport Modeling (Advection-Dispersion Equation) — Mapping the measured BPA leachate concentration onto a real-time fluid dynamics simulation of the local San Gabriel Valley groundwater basin.
3. Plume forecasting
Subtractive Synthesis — Converting the calculated groundwater BPA plume expansion rates into a deteriorating 56k dial-up modem handshake signal, broadcast continuously through the exhibition space.
4. Acoustic degradation

lineage

Trevor Paglen, 'The Last Pictures' — Extends Paglen's concept of ultra-long-term human artifacts from orbital space down into subterranean hydro-geology.
Taryn Simon, 'An American Index of the Hidden and Unfamiliar' — Replaces Simon's photographic exposure of hidden infrastructure with real-time chemical extraction and quantification.
Robert Smithson, 'Spiral Jetty' — Reinterprets Smithson's entropic earthwork via the involuntary, invisible chemical decay of mass corporate mailings.

curatorial qa (machine verdict, unedited)

SCORE 4/5 after 2 attempt(s)
READS: The physical strata of AOL CD-ROMs in landfill core samples and their direct chemical breakdown into groundwater leachate via GC-MS BPA quantification.
FAILS: The groundwater fluid appears overly luminous and stylized rather than a realistic hydrogeological transport layer; acoustic translation is absent visually.

spec: antigravity agent · keyframe/artifact: gemini-3.1-flash-image · video: veo-3.1 image-to-video · qa+wall text: gemini-3.7-flash watching the render · 34.4s total