The Looking Glass is an open-source, single-page WebGL spatiotemporal image and video engine that uses AI models and a user-supplied OpenRouter key to render imagined views of Earth locations at any chosen hour and year between 252 million years ago and 3050 AD.

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License

AGPL-3.0

Last updated

2026-07-31

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FR-AI / ANALYSIS

Why it is worth attention

It makes deep time explorable with a tactile instrument-like interface, 284 density-calibrated temporal stations, 55 curated journeys, and a no-backend, no-account, privacy-conscious architecture.

Who it is for

  • History enthusiasts and place-based learners
  • Educators and students exploring historical geography
  • Creative technologists and AI-art / film experimenters
  • Developers who want to self-host a generative mapping experiment

Use cases

  • Drop a pin on a location and explore what that place might have looked like at different historical eras and hours
  • Use Hold & Compare or blink-comparison to wipe between two eras aligned on the same viewport
  • Jump into one of the 55 curated journeys such as Pliny sailing toward Vesuvius or Apollo 11 leaving the pad
  • Generate short AI films with sound for a chosen historical moment to use as visual inspiration or media prototyping

Strengths

  • No backend, no account, no telemetry; frames persist in IndexedDB and can be restored for free
  • 284 temporal stations are spaced by historical change, not evenly, with direct year/era input
  • 55 one-click curated journeys plus multiple selectable models for stills and films
  • Strict CSP pins connect-src to OpenRouter so a compromised dependency cannot easily exfiltrate the user-supplied key

Considerations

  • Requires a user-supplied OpenRouter API key and lever pulls can spend credits on generated media
  • Outputs are AI-generated reconstructions, not verified historical images or archival footage
  • The experience depends on third-party model availability, pricing, and browser WebGL/IndexedDB support

README quick start

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                    ⧗
        T H E   L O O K I N G   G L A S S   🪞👁️🪞
         EX LOCO, PER VITRUM, AD OMNE TEMPUS
        From Place, Through Glass, To All Time

                 FORTES FORTUNA IUVAT

THE LOOKING GLASS 🪞⧗

GL4SS.ai

it's not a time machine. i checked. but it does feel time-machine-adjacent!point it anywhere on Earth, dial any year between the Great Dying and the year 3050, pick an hour of the day, and pull the lever.

THE LOOKING GLASS is a spatiotemporal image + video engine — a multidimensional viewer that develops an image of whatever was standing at that exact spot, in that exact year, at that exact hour. Then, if you want, it renders that frame as a short film with sound. One page. No backend. No account. Your key, your browser, your archive. 🐉

speculum — a mirror; also the surgical instrument for seeing into places light does not reach. this is that, pointed at the past.


👁️ WTF IS THIS

You know the feeling of standing somewhere old and trying to see it — the street before the street, the harbour before the concrete, the hill before the city? Your brain reaches for it and comes back with mush, because it has never been given anything to reach with.

This gives it something.

Drop a pin on the Bay of Naples. Spin the year back to AD 79. Nudge the sun to afternoon. Pull the lever.

And there it is: the deck of a Roman warship, refugees hauling themselves aboard from a skiff, other galleys standing off in the swell, ash coming down like dirty snow, and the mountain going up behind it all — Pliny the Elder sailing toward Vesuvius while every other hull in the bay ran the other way. 🌋

"Fortes" he said, "fortuna iuvat." Fortune favours the brave. He did not come back.

That line is at the top of this README. It was his first.


🔮 THE INSTRUMENT

The whole surface is one machined body, milled from a single billet and lit by one fixed lamp at 168°, seen through one seated optic. Nothing ships unless it is edge physics under that lamp, or a mark that read

Description

the looking glass — spatiotemporal image + video engine

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