This may be one of the most common visual experiences of the Intelligence Age: the cellphone afterimage that lingers for a few seconds before sleep, or when we close our eyes for a moment. Have you ever noticed it?

Residual Light performs that moment once. A blue rectangle, the ghost of a screen just looked at, floats in darkness and decays for twelve seconds: the edges first, then the body of the light, then a trace, then black. Nothing else happens. Nothing brightens. The work is the dying of the light.

The phone never appears. What is shown is not a device but a perception: the light that stays in the body after the screen is gone.

I make work about the media we live inside without noticing, the way we live inside weather.

For many of us, this is now the last light of the day: not the sun, not a candle, but a phone. And when the screen goes dark, the body keeps broadcasting it. For a few seconds the eye holds a rectangle of light that no longer exists. It fades the way a bell stops ringing.

Everyone can make this image at home. That is the point. The phenomenon is universal, free, and repeated nightly by billions of people, and it goes almost entirely unnoticed. The work does not invent it. The work notices it, names it, and lets it die at full attention.

This piece was made with AI systems: a written prompt asked a machine to render what happens inside a human eye. The machine can simulate the image of perception. It cannot do the perceiving. The seeing, and the noticing, remain ours. That remainder is the subject of everything I make.

The decay is strictly monotonic. Across all 288 frames the light only leaves; it never pulses, never returns. The falloff is steep at first and slow at the end, the way retinal persistence actually dies.

Signatures Through Technologies maps the human signature across a 22-state chiasm: breath, trace, ink, print, code, prompt, light, interface, simulation, luminescence, and silence. This work sits at the fold between state G, Light & Mirror, and the speculative state K, Luminescence & Matter: the light of the screen persisting in the matter of the retina.

In this practice every dominant medium eventually becomes a mirror. Here the mirror overstays. The screen is gone, and its light is still in the body.

Beyond the studio, the work stands in the long lineage of the monochrome: Klein's blue, Rothko's late fields, Turrell's staged perception. The difference is that this rectangle was never an object. It is the record of a perception, and it behaves like one: it fades.

It sits beside The Alphabet Is the Box, The Alphabet That Answers, and the studies of When the Alphabet Becomes Strange, where the media that carry thought are made strange enough to be seen.

The work is presented as a fixed moving-image master. Its process is disclosed in full, including the generation prompt, which is preserved here as material: a paragraph of alphabet asked to produce a memory of light.