AI NEWS PAGECASE FILEPERSON FILESTATUS: ON FILE

Liron Shapira

P(DOOM), LIVE ON AIR

FILE UPDATED Oct 8, 2026

WHY THEY MATTER

Former startup founder who became one of AI safety's loudest evangelists, famous for marathon Twitter debates and a ~50% estimate of AI-driven doom.

THE RAP SHEET

ZIMBO'S READ ON Liron Shapira

Sunday strip: Liron Shapira, WHAT'S YOUR P(DOOM)? — 2007 Yudkowsky-pilled via Overcoming Bias; founds Quixey, app-search fails; 2012 $10K into Coinbase, sells ~$6M as crypto Exhibit A; Relationship Hero CEO (YC S17); PauseAI protest and Doom Debates; finale: ~50% p(doom) amid bickering researchers.

WHAT'S YOUR P(DOOM)?

DEEP FILE

THE WHOLE FILE

chronology · facts · older headlines · sources

THE DOOMER WHO QUIT CRYPTO TO SCREAM ABOUT THE APOCALYPSE

Former startup founder who became one of AI safety's loudest evangelists, famous for marathon Twitter debates and a ~50% estimate of AI-driven doom. Wherever doomers gather to argue, Shapira is already there.

  1. Feb 23, 2023

    DOOMER GOES MAINSTREAM EARLY — LIRON MAKES THE AI APOCALYPSE CASE

    Long before the doom chorus, Shapira laid out the full extinction case on Stoa Conversations, months before GPT-4 hysteria peaked.

    SOURCES: Stoa Conversationsfirst-party

  2. Apr 25, 2023

    FROM CRYPTO DEBUNKER TO AI DOOMER — LIRON PIVOTS HIS TARGET

    Recorded April 25, 2023: the ex-web3 critic turned AI existential-risk evangelist breaks down what superintelligence could wreak.

    SOURCES: Brad Millsfirst-party

  3. Jul 25, 2023

    'THE DEFAULT OUTCOME IS... WE ALL DIE' — DOOMER'S CHILLING VERDICT

    Complete Tech Heads Ep. 6: founder and self-styled 'AI doom pointer-outer' warns the default trajectory of advanced AI is human extinction.

    SOURCES: Complete Tech Heads (Acast)first-party

  4. Aug 17, 2023

    COMMA.AI FOUNDER VS. DOOMER — 3-HOUR AI SHOWDOWN ON X

    Shapira debated AI doom with George Hotz in a marathon August 17, 2023 Twitter Space; only the second half survived on video.

    SOURCES: YouTube (Doom Debates)first-party

  5. Oct 2023

    'ALIGNMENT IS SOLVED?!' — DOOMER CLASHES WITH ALIGNMENT OPTIMIST

    Shapira faced PhD researcher Quintin Pope in a Twitter Spaces debate after Pope argued AI alignment was basically already solved.

    SOURCES: YouTube (Doom Debates)first-party

  6. Nov 21, 2023

    OPENAI IMPLODES — DOOMER CALLS THE CHAOS IN REAL TIME

    Days after Sam Altman's ouster, Shapira dissected the OpenAI meltdown and what it revealed about the race to build AGI.

    SOURCES: Complete Tech Heads (Acast)first-party

  7. May 6, 2024

    DOOMER VS. THE EVOLUTION OF GOD — ROBERT WRIGHT SHOWDOWN

    Recorded May 6, 2024: NonZero's Robert Wright grilled the Pause AI advocate on whether AI doomerism needs Hollywood.

    SOURCES: NonZero (YouTube)first-party

  8. Oct 15, 2025

    DOOMER RETURNS — ROUND TWO WITH THE NONZERO SKEPTIC

    Recorded October 15, 2025: Shapira returned to NonZero, still pressing a ~50% chance of AI doom, facing Wright's rationalist pushback.

    SOURCES: NonZero (YouTube)first-party