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Latest Writing

  • Looking Back (and Ahead!) at the Samuelson Clinic’s 25th Anniversary

    On September 24, I’ll join a conversation about the Samuelson Clinic’s work, its influence, and the continuing need for serious public-interest technology law and policy.

    policy law digital-rights public-speaking
  • Cliff Stoll at DEF CON 34: The Best Talk I’ve Ever Seen

    Forty years after a 75-cent accounting error sent him chasing a hacker across the early Internet, Cliff Stoll returned to the story at DEF CON—with an overhead projector, his original transparencies from a 1987 NSA presentation, and a thermos of minestrone soup.

    cybersecurity security-history incident-response def-con cliff-stoll
  • When (DNA) Signatures Aren't Enough

    AI can now help design whole viral genomes. That creates a security problem computer defenders know well: how do defenders recognize a threat when it no longer resembles the threats they know? DNA synthesis gives biosecurity a rare chokepoint—for now.

    artificial-intelligence biosecurity cybersecurity synthetic-biology malware
  • Beyond Grains of Sand: From the Planck Length to the Edge of Infinity

    Science communicators love to compare complex systems to 'the number of atoms in the universe.' It's a terrible analogy. Here is a proper tour of scale, mapping the journey from the quantized foam of the Planck length all the way to the formal axioms of set theory.

    cosmology physics mathematics scale set-theory computability holography
  • The Hologram in the Heartbeat: Testing Quantum Gravity with a Galactic Microquasar

    Theory without observation is just beautiful math; observation without theory is just raw data. Here’s how an extreme, X-ray-spewing microquasar in our own galaxy provided the exact physical data needed to prove the universe behaves like a hologram.

    physics astrophysics quantum-gravity holography black-holes observational-astronomy

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