# One person, every era

> The same face, skin, iris and framing in all ten eras. Eras may change the screen, the light, the lens, the medium, the gaze and the sign. They may never change the person.

- URL: https://www.kiruk.in/making/one-person
- Kind: Principle
- Made: 20 Oct 2026
- Author: Arun Kumaar Sreenivasan
- Part of: How this was made (https://www.kiruk.in/making)
- Agent file: https://www.kiruk.in/making/one-person/agent.md

## The rule

There is one person. They are 25, South Indian, with a dark brown iris. Every era shows that person.

## Why

The first plan gave each era its own face: someone around fifty for 1970, someone else for 2003. Ten well-made eyes in a row read as a gallery of strangers. One eye in ten kinds of light reads as a life spent in front of screens, which is the story the site is telling.

## What it costs

Every realism change has to be checked ten times, each in its own terms. A new skin detail that is right in 2009's warm photo can vanish in 1981's two colours or turn to noise in 1970's phosphor.

"Most realistic in 1995" therefore never means a change to the person. It means the same person under 1995's conditions: its light, the pupil that light causes, its lens, its medium.

## Lineage

### Holds for

- [The loader eye](https://www.kiruk.in/making/loader-eye) (Interface, May to Nov 2026): One human eye, drawn live in the browser and lit only by the screen it is looking at. It was built four times in six months, measured against a photograph of my own eye, and it changes era by blinking.
- [1970, phosphor](https://www.kiruk.in/making/1970-phosphor) (Interface, Oct 2026): The first of the ten ways of seeing. A green tube is the only light in the room, the picture is drawn in glowing cells, and a block cursor waits in the pupil. Every other era was built to match what this one got right.