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From First Principles

Krishna Choudhary and Lester Nare

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From First Principles is a fast, funny, and rigorous breakdown of the biggest science stories of the week, hosted by Lester Nare and physicist Krishna Choudhary, PhD. We go past headlines into the actual mechanics: what happened, why it matters, and what everyone’s missing.

Expect physics, space, AI, energy, biotech, and the occasional “wait… is that real?” story. If you’re curious, skeptical, and you like learning in public — you’re in the right place.

Afleveringen

  1. What Happens When AI Gets a Lab?

    21 oktober 2026 · 1 uur 39 min

    Afspelen
    What happens when AI moves beyond the chatbot and into the laboratory? From Claude-designed proteins that bind scorpion toxins to robots that assemble optics experiments, we examine what AI can do for science and what still has to be proven in the real world.
    Lester Nare and Krishna Choudhary explore the gap between generating a promising design and demonstrating that it works. We also unpack BrainChat, a research platform that lets epilepsy patients interact with their brain-recording data and contribute feedback to seizure detection, and a 15-year study of orangutan mothers facilitating playdates for their young.
    Along the way: why binding a toxin is not the same as neutralizing it, how patient feedback can help personalize models, and what cloud laboratories and automated experiments could mean for scientific discovery. Which part of science do you think AI will change most?
    CHAPTERS
    00:00 Playdates, brain data and robot labs
    00:29 Hello Internet and Signal Award celebration
    02:40 Orangutan mothers and infant playdates
    15:18 What 15 years of orangutan observations reveal
    25:16 Testing the playdate hypothesis
    39:30 BrainChat and patient-guided learning
    44:57 Putting patients in the feedback loop
    1:02:00 Personalizing seizure detection
    1:05:33 What the BrainChat study does not yet establish
    1:07:59 Anthropic scorpion-toxin binders
    1:15:49 Why a toxin binder is not an antivenom
    1:18:31 Fast AI designs, slower laboratory testing
    1:19:40 Connecting AI to the physical lab
    1:23:22 Robotic optics and automated laboratories
    1:28:04 Cloud laboratories and remote experiments
    1:33:00 Closing the loop with Lila Sciences
    1:37:48 Wrap-up
    RESEARCH & FURTHER READING
    Orangutan maternal ranging and infant social play (PNAS):
    https://pubmed.ncbi.nlm.nih.gov/42837467/
    BrainChat and human-AI collaboration in epilepsy (Nature Medicine):
    https://www.nature.com/articles/s41591-026-04680-4
    Claude-designed scorpion-toxin binders (Anthropic):
    https://www.anthropic.com/research/claude-scorp…
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  2. Nobel Prize 2026: The Science Gets Stranger

    16 oktober 2026 · 1 uur 59 min

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    Can light restore aspects of sight? Can recalling a cold experience change an animal's metabolism? And what can ghost particles and mirror-image molecules tell us about the universe?
    Lester Nare and Krishna Choudhary follow up on our 2026 Nobel Prize episodes with research building on optogenetics, IceCube and molecular handedness. We unpack an early human vision-restoration trial, cold-memory experiments in mice, cosmic neutrino flavors, and a tiny electrical sensor for distinguishing left- and right-handed amino acids.
    Plus: how the Nobels work, our follow-up on the Nobel chemistry illustration, a brief look at neutrino Earth tomography, and why fundamental research matters. Which discovery would you like us to explore next?
    CHAPTERS
    00:00 Cold open: memory, neutrinos and mirror molecules
    00:28 Hello Internet and how the Nobels work
    04:32 Optogenetics recap
    10:23 Restoring aspects of vision
    25:43 Controlling movement in worms
    29:31 Cold memories and metabolism
    41:07 Memory, trauma and ethical questions
    45:44 FFP housekeeping
    48:17 IceCube recap
    56:23 Measuring cosmic neutrino flavors
    1:10:30 A brief look at neutrino Earth tomography
    1:12:20 Why fundamental physics matters
    1:26:58 Chemistry and molecular handedness
    1:29:08 Correcting the Nobel illustration
    1:39:30 Measuring chirality in tiny samples
    1:46:42 Testing the sensor on meteorite and desert samples
    1:51:22 Why these questions matter
    1:57:20 Closing thoughts and signoff
    RESEARCH & FURTHER READING
    Optogenetic therapy for visual function (NEJM, 2026):
    https://doi.org/10.1056/NEJMoa2602215
    Cold memories and thermoregulation (Nature, 2025):
    https://doi.org/10.1038/s41586-025-08902-6
    Three-flavor composition of cosmic neutrinos (PRL, 2026):
    https://doi.org/10.1103/vntd-m133
    Chiral discrimination in meteorite and desert soil extracts (Nature Communications, 2026):
    https://doi.org/10.1038/s41467-026-77947-6
    Further reading, briefly mentioned: neutrino Earth tomography (preprint):
    https://arxiv.org/abs/2607.02644
    …
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  3. Nobel Prize in Chemistry 2026 Explained: Mirror Molecules (EP 63)

    8 oktober 2026 · 1 uur 21 min

    Afspelen
    Why does life favor one molecular mirror image? The 2026 Nobel Prize in Chemistry honors Henri B. Kagan and Kenso Soai for nonlinear effects and autocatalysis in asymmetric organic synthesis.
    Lester Nare and Krishna Choudhary unpack the science from first principles: chirality, Pasteur's crystals, enantiomeric excess, and how a tiny imbalance can grow into an overwhelming preference for one molecular hand.
    We connect Kagan's catalyst discoveries and the Soai reaction to medicines, the origins of biological handedness, and the serious concerns around hypothetical mirror life. Plus: symmetry in physics, Frances Oldham Kelsey and thalidomide, and our interpretation of a Nobel illustration.
    CHAPTERS
    00:00 Why life has a molecular handedness
    01:33 Hello Internet
    02:49 The 2026 Chemistry laureates
    06:24 Chirality and mirror-image molecules
    12:10 Pasteur and the history of handedness
    19:36 Why is life's chemistry one-handed?
    24:35 Frank and the origin-of-life puzzle
    29:14 Enantiomeric excess explained
    30:30 Kagan and nonlinear effects
    38:58 FFP and symmetry in physics
    42:20 Soai and asymmetric autocatalysis
    51:28 Why chirality matters for medicine
    58:21 What this does and does not explain about life
    1:00:25 Mirror life and biological risk
    1:10:37 Examining the Nobel illustration
    1:14:10 Recap and Nobel week reflections
    RESEARCH & FURTHER READING
    Original papers and supporting context:
    Frank's model (1953): https://doi.org/10.1016/0006-3002(53)90082-1
    Puchot, Kagan et al. (1986): https://doi.org/10.1021/ja00269a036
    Soai et al. (1995): https://doi.org/10.1038/378767a0
    Sato et al., amplification (2003): https://doi.org/10.1002/anie.200390105
    Mirror-life risks (2024): https://doi.org/10.1126/science.ads9158
    Nobel announcement: https://www.nobelprize.org/prizes/chemistry/2026/press-release/
    EDITORIAL NOTES
    Intro: the 50:50 example describes an unbiased synthesis, not all chemistry. The Soai reaction is a clue to amplification, not proof of how life began.
    On-screen clarificati…
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  4. Nobel Prize in Physics 2026 Explained: IceCube & Neutrinos (EP 62)

    6 oktober 2026 · 1 uur 2 min

    Afspelen
    Why build a telescope inside a billion tons of Antarctic ice? The 2026 Nobel Prize in Physics recognizes Francis Halzen's work on IceCube and the discovery of high-energy neutrinos from the cosmos.
    In Episode 62 of From First Principles, Lester Nare and Krishna Choudhary explain neutrinos from the ground up: why these elusive particles make powerful cosmic messengers, how faint flashes of Cherenkov light reveal their interactions, and why detecting them requires an observatory buried deep beneath the South Pole.
    We follow the path from beta decay and the first neutrino experiments to AMANDA, IceCube's construction, the 2013 astrophysical breakthrough, a distant blazar, and a neutrino map of the Milky Way. Along the way: cosmic rays, the Oh-My-God particle, tracks versus cascades, and the international collaboration behind the discovery.
    CHAPTERS
    00:00 Hunting ghost particles beneath Antarctica
    01:16 Hello Internet and Nobel Prize
    05:30 What are neutrinos?
    10:00 Neutrinos as cosmic messengers
    15:02 The Oh-My-God particle
    16:21 Cosmic-ray energies
    19:07 Cosmic particle accelerators
    22:28 Why look for neutrinos?
    25:52 How to detect a neutrino
    29:23 Cherenkov light
    33:13 Building a neutrino observatory
    37:17 From Antarctic ice to AMANDA
    42:21 Building IceCube
    44:59 Reading tracks and cascades
    49:30 Backgrounds and the 2013 discovery
    52:46 Tracing cosmic neutrino sources
    54:16 Mapping the Milky Way
    58:23 IceCube collaboration and Gen2
    1:01:05 Closing and Nobel week
    RESEARCH & FURTHER READING
    AMANDA in Antarctic ice (2001): https://doi.org/10.1038/35068509
    IceCube detector and instrumentation (2017): https://doi.org/10.1088/1748-0221/12/03/P03012
    First PeV neutrinos (2013): https://doi.org/10.1103/PhysRevLett.111.021103
    Astrophysical neutrino evidence (2013): https://doi.org/10.1126/science.1242856
    Blazar TXS 0506+056 (2018): https://doi.org/10.1126/science.aat1378
    Archival blazar neutrino emission (2018): https://doi.org/10.1126/science.aat2890
    Milky Way neutrino map (2…
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  5. Nobel Prize in Medicine 2026 Explained: Optogenetics (EP 61)

    5 oktober 2026 · 1 uur 11 min

    Afspelen
    How do you prove what a brain cell actually does? The 2026 Nobel Prize in Medicine celebrates a remarkable answer: give cells a light-sensitive protein, then switch their activity on or off with light.
    In Episode 61 of From First Principles, Lester Nare and Krishna Choudhary explain optogenetics from the ground up and trace the discoveries of Peter Hegemann, Georg Nagel and Karl Deisseroth. We follow the story from algae swimming toward light to channelrhodopsins, precisely controlled neurons, and experiments probing memory, reward and behavior. Then we explore heart-brain connections, early attempts to restore vision, and what these experiments can and cannot tell us.
    CHAPTERS
    00:00 The discovery that put brain cells under light control
    02:34 Hello Internet
    03:28 2026 Medicine Nobel and optogenetics
    05:38 Understanding the brain
    08:42 From correlation to causation
    18:13 Controlling neurons with light
    21:25 Early optogenetics and the chARGe system
    24:17 Light-sensitive microbial proteins
    26:26 Algae and phototaxis
    31:42 Discovering channelrhodopsins
    34:42 Nagel and light-gated ion channels
    40:55 Controlling mammalian neurons
    50:19 Expanding the optogenetic toolkit
    56:10 Neural circuits and behavior
    59:02 Memory, reward and reinforcement
    1:02:53 Heart rhythm and emotion
    1:04:02 Beyond the brain and toward medical treatments
    1:06:56 Implications and limits
    1:09:10 Closing and Nobel week
    RESEARCH & FURTHER READING
    Full paper list: https://ffppod.com/episodes/ep61
    Nobel Prize announcement and background:
    https://www.nobelprize.org/prizes/medicine/2026/summary/
    Optical control of neurons: https://doi.org/10.1038/nn1525
    Memory recall in mice: https://doi.org/10.1038/nature11028
    Partial visual recovery: https://doi.org/10.1038/s41591-021-01351-4
    EDITORIAL NOTES
    On-screen clarifications are included at these timestamps:
    13:46 The Jennifer Aniston neuron was recorded in human patients. Selective firing alone did not establish that it causes recognition.
    30:34 Vertebrate rho…
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  6. 2026 Nobel Prize Predictions: Medicine, Physics & Chemistry (EP 60)

    3 oktober 2026 · 41 min

    Afspelen
    Who could win the 2026 Nobel Prizes? From the science behind Ozempic to quantum interference and droplets inside living cells, Lester Nare and Krishna Choudhary make their picks for Medicine, Physics and Chemistry, and explain the discoveries behind them.
    In Episode 60 of From First Principles, we explore seven research areas with a case for Nobel recognition: GLP-1, optogenetics, optical coherence tomography, the Aharonov–Bohm effect, atomic force microscopy, biomolecular condensates and Buchwald–Hartwig coupling. We also discuss Michael Berry’s geometric phase and the awkward question of how a prize limited to three people recognizes discoveries built by larger teams.
    These are our predictions, recorded before the 2026 announcements. Medicine, Physics and Chemistry will be announced October 5–7. Which discovery, and which researchers, would you pick? Tell us in the comments, then join us for our Nobel week breakdowns.
    CHAPTERS
    00:00 The science that could win a Nobel Prize
    00:57 Hello Internet: our 2026 predictions
    02:03 Medicine: GLP-1 and the science behind Ozempic
    07:41 Medicine: optogenetics and controlling neurons with light
    13:16 Medicine: optical coherence tomography
    16:28 Golden Goose Awards and FFP updates
    18:39 Physics: the Aharonov–Bohm effect and geometric phase
    27:37 Physics: atomic force microscopy
    32:04 Chemistry: biomolecular condensates
    36:36 Chemistry: Buchwald–Hartwig coupling
    38:42 Your predictions and our Nobel week plans
    RESEARCH & FURTHER READING
    Foundational papers and background for the discoveries discussed:
    GLP-1: Mojsov, Weir & Habener (1987)
    https://doi.org/10.1172/JCI112855
    Optogenetics: Boyden et al. (2005)
    https://doi.org/10.1038/nn1525
    Optical coherence tomography: Huang et al. (1991)
    https://doi.org/10.1126/science.1957169
    Aharonov–Bohm effect (1959)
    https://doi.org/10.1103/PhysRev.115.485
    Berry’s geometric phase (1984)
    https://doi.org/10.1098/rspa.1984.0023
    Atomic force microscopy: Binnig, Quate & Gerber (1986)
    https://doi.org/1…
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  7. Golden Goose Awards 2026: The Science Behind the Winners (Part 1) (EP 59)

    29 september 2026 · 2 uur 7 min

    Afspelen
    What connects a noise complaint, holiday lights seen from space, and the physics of a coffee stain? Three unexpected paths from basic research to discoveries with real-world impact.
    Krishna Choudhary and Lester Nare explore the science behind the 2026 Golden Goose Awards: Zhen Xu's work on histotripsy, NASA's Black Marble nighttime satellite data, and Sidney Nagel's discoveries in soft matter physics.
    We start with focused ultrasound and the tiny bubbles that can break apart targeted tissue, tracing the journey from early laboratory experiments to clinical research on liver tumors. Then we look at how Earth's nighttime lights reveal power outages, disaster recovery, and changing human activity. Finally, falling drops, coffee stains, and jammed grains open up a world of robotic grippers and materials that can be trained and retrained.
    The thread connecting all three stories is the unexpected value of federally funded basic research. Part 2 will feature conversations with the award-winning researchers and AAAS CEO Sudip Parikh.
    CHAPTERS
    00:00 Golden Goose Awards trailer
    01:19 Introducing our Golden Goose special
    02:42 Zhen Xu: From a noise complaint to histotripsy
    05:57 The early ultrasound experiments
    13:42 Controlling cavitation with microtripsy
    20:29 Tumor destruction and the immune response
    28:33 Histotripsy through the skull
    37:23 The HOPE4LIVER clinical trial
    43:55 Why basic research needs time
    47:17 FFP updates and supporting the show
    49:20 NASA Black Marble: Holiday lights from space
    55:29 Turning night lights into reliable data
    1:01:36 Hurricane Maria and unequal recovery
    1:08:12 COVID-19 and changing nighttime activity
    1:10:16 Mapping access to electricity
    1:15:20 Where Earth is brightening and dimming
    1:32:57 Sidney Nagel and the physics of everyday life
    1:37:07 The science of a falling drop
    1:46:02 Why coffee leaves a ring
    1:51:04 Jamming: When grains become rigid
    1:53:35 A robotic gripper filled with grains
    1:55:39 Why air pressure changes a splash
    1:58:…
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  8. What OpenAI Actually Did to Navier-Stokes (EP 58)

    24 september 2026 · 4 uur 9 min

    Afspelen
    What does it mean to solve an equation that describes almost every fluid around us, from the air over a wing to the water swirling down a drain?
    In Episode 58 of From First Principles, Lester Nare and Krishna Choudhary build the Navier-Stokes equations from the ground up before digging into OpenAI’s claimed breakthrough and the debate surrounding it.
    Summary
    How Newton’s laws become equations for a moving fluid
    Velocity fields, incompressibility, pressure and the nonlinear convective term
    Why viscosity smooths a fluid while nonlinear motion can create finer structure
    What finite-time blowup means, and why simulation is different from proof
    How forced and unforced equations differ, and why those assumptions matter
    Earlier work on Euler, Boussinesq and related fluid equations
    OpenAI’s claimed result, Lean verification and the scope of the theorem
    The dispute over scientific credit and the human research behind AI-assisted work
    The METR investigation of the Hugging Face incident
    Emergence World and long-running multi-agent experiments
    AI-assisted biological discovery, oversight and recursive self-improvement
    Separating demonstrated capabilities from claims and future scenarios
    Chapters
    00:00 Can AI solve Navier-Stokes?
    00:34 Episode introduction
    02:20 Navier-Stokes: Mathematics Meets AI
    10:20 Building the Equations of Fluid Motion
    21:34 Velocity fields, divergence and incompressibility
    34:33 Acceleration and the convective term
    52:18 Why Fluid Motion Is Nonlinear
    1:02:08 Pressure, Euler and the Missing Physics
    1:14:50 How Viscosity Changes Everything
    1:33:36 Solving Equations vs. Simulating Fluids
    1:44:59 Can a Smooth Fluid Blow Up?
    2:13:52 The Road to the Claimed Breakthrough
    2:31:13 Inside the Claimed Navier-Stokes Proof
    2:48:26 The Dispute Over Scientific Credit
    3:07:23 From Chatbots to Agents
    3:08:57 The METR report and Hugging Face incident
    3:23:23 AI Risk, Oversight and the Race Ahead
    3:38:51 AI Discovery Beyond Mathematics
    3:52:47 Why “just turn it off” gets co…
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  9. What’s Next in Science? Nobel Prizes, Space Missions & More (EP 57)

    14 september 2026 · 1 uur 4 min

    Afspelen
    What science should you be watching this fall? From Nobel Prize season to NASA’s Roman Space Telescope, Mars’ moons and Mercury, Lester Nare and Krishna Choudhary take a relaxed tour of the discoveries and missions on their radar.
    In Episode 57 of From First Principles, we explore why curiosity-driven research matters, what the Golden Goose Awards celebrate, and how questions that once sounded impractical can lead to unexpected breakthroughs. Then we turn to space: Roman’s search for dark energy and exoplanets, JAXA’s Martian Moons eXploration (MMX) mission, and the mysteries ESA and JAXA’s BepiColombo mission will investigate at Mercury.
    Along the way, we tour the updated FFP website, revisit some favorite episodes, and ask which stories you want us to cover in depth next.
    A note before we begin: the main conversation was recorded before Labor Day weekend. The opening announcement addresses your requests for a separate episode on OpenAI, Navier–Stokes and the wider AI conversation. This episode is our fall science rundown; that deep dive is still to come.
    CHAPTERS
    00:00 Update on our upcoming Navier–Stokes and AI coverage
    03:43 Episode intro and football banter
    05:47 FFP intro
    06:01 Nobel Prize season and our coverage plans
    10:45 Golden Goose Awards: why basic research matters
    21:02 FFP website tour and favorite episodes
    42:24 Nancy Grace Roman Space Telescope
    46:20 Microlensing, exoplanets and dark matter
    51:25 MMX: where did Mars’ moons come from?
    54:40 BepiColombo and the mysteries of Mercury
    1:02:17 Your questions, future deep dives and sign-off
    1:05:40 Outro
    SHOW NOTES
    NASA’s Nancy Grace Roman Space Telescope:
    https://science.nasa.gov/mission/roman-space-telescope/
    JAXA’s Martian Moons eXploration (MMX):
    https://www.mmx.jaxa.jp/en/mission/
    ESA / JAXA BepiColombo:
    https://www.esa.int/Science_Exploration/Space_Science/BepiColombo
    Explore the research and episodes we cover:
    https://ffppod.com
    Science R&D Funding Tracker:
    https://ffppod.com/funding
    Science Transf…
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  10. The Yak Mutation That Could Help Repair the Brain (EP 56)

    7 september 2026 · 1 uur 36 min

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    What can a yak living thousands of meters above sea level teach us about repairing the human brain?
    In Episode 56 of From First Principles, Lester Nare and Krishna Choudhary break down a new Neuron paper that traces an evolutionary adaptation found in high-altitude animals to a previously hidden pathway involved in building and repairing myelin.
    Summary
    What myelin actually does and why losing it disrupts neural communication
    How multiple sclerosis damages myelin and why the brain’s natural repair process eventually fails
    Why oligodendrocyte precursor cells can remain present in damaged tissue without successfully rebuilding myelin
    Why current therapies are better at slowing further damage than restoring what has already been lost
    The challenge of getting drugs across the blood-brain barrier while maintaining target specificity
    How evolutionary pharmacology has previously produced medicines from adaptations found in snakes and Gila monsters
    The RETSAT Q247R variant identified in animals adapted to the hypoxic environment of the Tibetan Plateau
    How researchers engineered the high-altitude variant into mice and tested its effect on myelin
    The surprising discovery that neurons — rather than the myelin-producing cells themselves — generate the key repair signal
    How RETSAT increases ATDR, which neurons convert into ATDRA
    How ATDRA activates RXR-γ in oligodendrocyte precursor cells and promotes their differentiation
    How administration of ATDR promoted remyelination across multiple preclinical models
    Why the result is scientifically promising but still far from a proven human treatment
    Featured Paper
    A gain-of-function Retsat variant from high-altitude adaptation promotes myelination via a neuronal dihydroretinoic acid-RXR-γ pathway
    Neuron, 2026
    DOI: 10.1016/j.neuron.2026.01.013
    Explore FFPffppod.comffppod.com/fundingffppod.com/transfersffppod.com/America250
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    Follow@FFPPod on X / Instagram / TikTok / Facebook
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Meestal 1 uur 45 min
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65
Laatste aflevering
21 oktober 2026
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1 augustus 2025
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