Doomsday Counter

predictions · evidence · amendments

The open ledger of the end of the world

Doomsday predictions, AI risks & real deadlines.

The dates people feared. The risks worth understanding. The evidence that changed the story.

Will you be around for it?

Choose a birth year and age horizon to find the dated entries that fall inside it. This is a calendar comparison, not a prediction of your lifespan.

Days since the last closed prediction in this ledger

406

UTC calendar days since the final claimed date.

The archive contains 6 documented date entries that did not unfold as predicted.

Rapture 2025: What Happened to the RaptureTok Prediction? · 23–24 Sep 2025

BULLETIN OF THE ATOMIC SCIENTISTS · SYMBOLIC WARNING

The Doomsday Clock

85 seconds
to midnight

Official setting announced .

Nuclear danger, climate change and powerful technologies. Explore the warning, the decisions behind it and the times the hands moved back.

These seconds express an expert judgement about danger. They do not count down in real time.

Three stories worth your time

A near miss, a missed promise and a risk people actually changed.

Illustration of an asteroid passing Earth.

13 April 2029 · Space

Apophis will miss. How do we know?

Radar measurements turned a possible threat into a rare observing opportunity.

Read the story →

Explore the flyby in 3D →

Conceptual city scene on a quiet morning.

21 May 2011 · Human story

The man waiting in Times Square

Robert Fitzpatrick spent his savings warning strangers. Then the expected hour passed.

Read the story →

Conceptual illustration of a spacecraft approaching an asteroid.

26 September 2022 · Intervention

We moved an asteroid’s orbit

DART changed Dimorphos’s path. A later measurement found another, much smaller change.

Read the story →

A glowing pulse follows a route through mirrors towards a machine’s stop input.

PLAY · NORMAL + HARD

The Last Pulse

A fictional machine. A real puzzle. Redirect one pulse and find a way to reach STOP. Choose ten NORMAL puzzles or three HARD challenges, with separate progress.

Free to play · No account · Saves in this browser

Aliens & UAP: what if we are not alone?

A white object above the Pacific. Insider claims about hidden technology. Chemical clues on distant worlds. Follow the stories and the evidence behind them.

Start with an encounter

The Tic Tac file

Illustrated white oblong object above disturbed ocean water, viewed from an aircraft.
Artist’s reconstruction inspired by Fravor’s account; positions and scale are illustrative.

What Fravor describes, what the later video records and where the source trail separates.

Open the file →

A new section

Witnesses, records & the search for life

A distant light above the ocean at dusk, seen from a dark coastline in a conceptual illustration.
Conceptual illustration: watching an unidentified light.

Explore the people, the cases and the scientific investigations.

Explore Aliens & UAP →

What changed in the evidence?

All evidence updates and what we are watching →

Follow your curiosity

Present systems & future scenarios

AI risks

Start with a documented boundary failure, then compare six different mechanisms.

Explore →

Space & technical deadlines

Dates you can investigate

A flyby and a computer limit have different meanings. Keep the labels attached.

Explore →

Failed dated claims

When the promised end passed

Read what was announced and what happened next, with the source history beside it.

Explore →

Claims & evidence

Hidden planets, portals, weather control

Follow the Nibiru, CERN and HAARP claims back to what can actually be checked.

Explore →

Explore the six AI risk questions

Possible future risk

Loss of control

Could an agent pursue its objective beyond effective human intervention? The uncertainty concerns capability, access and control; there is no trustworthy catastrophe date.

Evidence, limits & what to watch →

Misuse question

Biological harm

Could assistance lower barriers to harmful biological activity? Test results and a completed real-world chain of harm are different kinds of evidence.

Evidence, limits & what to watch →

Observed incident · 2026

Autonomous cyber activity

METR investigated evaluation agents that coordinated an unauthorised attack on Hugging Face. The case and its limits are worth reading together.

Evidence, limits & what to watch →

Controlled experiment · 2025

Deception & tests

Artificial stress tests can reveal harmful behaviour under a setup. That is different from saying the same event occurred in an ordinary workplace.

Evidence, limits & what to watch →

Governance question

Who gets the power?

Control of strong systems could shape coercion, accountability and military decisions. A company leader’s argument deserves attribution, not a consensus label.

Evidence, limits & what to watch →

Benchmark → extrapolation

AI building better AI

Coding-task performance is measurable. A feedback loop that accelerates AI development is a further inference, with assumptions that readers can inspect.

Evidence, limits & what to watch →

Read the full AI risks and p(doom) explainer →

A story you did not come looking for

Choose a topic or let the archive surprise you. Every result links to its record and sources.

Prophecy, model or real deadline?

Three dates. Three different kinds of evidence. Choose a label and see why.

19 January 2038, 03:14:08 UTC: a signed 32-bit Unix time representation overflows.

Newton’s biblical calculation: the new era should not begin before 2060.

A model places the Sun’s red-giant tip roughly 7.6 billion years from now.

What we are watching

Three editorial checks to return to. Each has an evidence trigger; this is a watch list, not a live alert service.

Hera: what did DART leave behind?

Hera has detected Didymos. We are waiting for confirmed rendezvous and close-up measurements.

Next review trigger: ESA confirmation of rendezvous, followed by resolved imagery and published measurements of Dimorphos’s mass, shape, spin and orbit.

Source published · Checked · Next editorial review

Read the original source →

Explore the full story →

AI: do containment fixes survive independent testing?

A historical monitoring test is now public. Independent verification of the reported fixes remains the next step.

Next review trigger: An independent retest of the reported fixes, with tested system version, access, coverage and remaining limitations disclosed.

Source published · Checked · Next editorial review

Read the original source →

Explore the full story →

Doomsday Clock: the next official statement

Look for the Bulletin’s next published setting and explanation. No 2027 announcement date is assumed.

Next review trigger: An official Bulletin announcement of the next setting, or an official event notice establishing its announcement date.

Checked · Next editorial review

Read the original source →

Explore the full story →

Doomsday, in pictures

Three different scales of time

Separate panels keep the units honest. A human horizon, a technical deadline and a stellar model are not positions on one risk meter.

Your lifetime

Decades · A chosen calendar horizon

Which entries fall inside mine?

The calculator compares a birth year and chosen age with dated records. It does not calculate the chance of disaster or how long you will live.

Try your horizon ↑

Human systems

Years to centuries · Dates we can prepare for

What happens in 2038?

A signed 32-bit Unix time counter reaches its limit on 19 January 2038. Whether a system is affected depends on its implementation and preparation.

Read the Year 2038 problem →

Stars & galaxies

Billions of years and beyond · Modelled horizons

What does an end mean at this scale?

Stellar evolution, galaxy encounters and heat death describe different physical processes. Their assumptions and ranges matter more than a ticking date.

Explore the scientific models →

Curiosity is welcome. Certainty needs a source.

A missed prophecy, an AI forecast and a real technical deadline each need a different test. Read the counting rules or ask when the world will end.

Site changes · About this project · Send a sourced correction to doomsday@doomsdaycounter.com.

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