Home Podcasts Machine Learning Street Talk (MLST)
Machine Learning Street Talk (MLST)

Machine Learning Street Talk (MLST)

Machine Learning Street Talk (MLST) 252 Episodes Sep 15, 2026

Machine Learning Street Talk (MLST) features in-depth conversations with leading figures in artificial intelligence, cognitive science, neuroscience, and philosophy of mind. The show covers current affairs in AI with rigorous analysis, aiming to cut through hype and explore diverse intellectual perspectives. Hosted by Tim Scarfe, Ph.D., with regular contributions from MIT Ph.D. Keith Duggar.

Episodes

How Physical AI Learns Across Language, Video and Action — Ming-Yu Liu
How Physical AI Learns Across Language, Video and Action — Ming-Yu Liu Sep 15, 2026 00:25:57 The car making a left turn at the start of this episode was never filmed. Cosmos 3 generated it. Ming-Yu Liu, who leads the Cosmos research at NVIDIA, explains how one model can describe a video, generate one, and produce robot actions.He walks Tim through the architecture. A vision language model reasons one token at a time; its weights then initialise a bidirectional diffusion generator for vide
Speech Recognition Is Not a Solved Problem — Pavan Muddireddy
Speech Recognition Is Not a Solved Problem — Pavan Muddireddy Sep 14, 2026 01:42:22 Pavankumar Reddy Muddireddy leads audio research at Mistral AI. He joins Tim Scarfe for a deep technical tour of Voxtral — and explains why the frontier of deployed voice is still a cascade of specialised models rather than one end-to-end system.IN PARTNERSHIP WITH MISTRAL AI:---This episode was produced in partnership with Mistral AI.Mistral AI: https://mistral.ai/---The conversation opens on arc
How Replication Could Teach Machines What Good Science Looks Like — Edward Hughes
How Replication Could Teach Machines What Good Science Looks Like — Edward Hughes Sep 11, 2026 02:01:53 Can a machine learn the judgement that separates a plausible-looking result from a faithful experiment? Edward Hughes, Chief Scientist and co-founder of Inherent, joins Tim Scarfe to argue that creativity is not optimisation, and that the missing capability in AI is choosing which questions are worth asking.SPONSOR:---Cyber Fund built the Monastery to help founders ship products that were impossib
AI 2040: Plan A report - Daniel Kokotajlo & Thomas Larsen
AI 2040: Plan A report - Daniel Kokotajlo & Thomas Larsen Sep 8, 2026 01:29:46 Could slowing AI development make superintelligence safer? Daniel Kokotajlo and Thomas Larsen of the AI Futures Project join Tim Scarfe to examine AI 2040: Plan A, a proposal to buy time before AI exceeds human control.SPONSOR:---Cyber Fund built the Monastery to help founders ship products that were impossible a year ago.Apply now: https://cyber.fund---After revisiting AI 2027 and the limits of f
Designing How AI Grows — Tom McGrath
Designing How AI Grows — Tom McGrath Sep 2, 2026 01:40:14 Tom McGrath is co-founder and Chief Scientist at Goodfire, and a former Google DeepMind researcher. He joins Tim Scarfe to ask what neural networks actually learn, whether their internal representations converge on structures in the world, and whether interpretability can extract new scientific knowledge rather than merely explain model outputs.Beginning with AlphaZero and learned modularity, the
Stealing Reasoning Traces from Proprietary LLM APIs — Ilia Shumailov & Alexander Panfilov
Stealing Reasoning Traces from Proprietary LLM APIs — Ilia Shumailov & Alexander Panfilov Aug 22, 2026 00:49:00 Tim Scarfe speaks with Ilia Shumailov and Alexander Panfilov about their paper, Stealing Reasoning Traces from Proprietary LLM APIs.The core bug sounds deceptively simple: providers return encrypted reasoning state so conversations can be resumed or forked. But those blobs can be replayed across users and sibling models. A smaller model can ask the provider to decrypt the trace, then repeat the hi
Every Exponential Ends — Silicon Valley Forgot — Adam Becker
Every Exponential Ends — Silicon Valley Forgot — Adam Becker Aug 20, 2026 01:18:23 Astrophysicist Adam Becker, author of "What Is Real?", joins Tim Scarfe to take apart the futures Silicon Valley keeps selling: the 2045 singularity, mind uploading, Mars colonies, and the AI apocalypse. His new book *More Everything Forever* argues these ideas are hugely influential, mostly evidence-free, and bankrolled by tech billionaires who need a story in which growth never ends.Be
AI Is Learning at the Wrong Level of Abstraction — Matthieu Wyart
AI Is Learning at the Wrong Level of Abstraction — Matthieu Wyart Aug 10, 2026 01:18:56 This episode is sponsored by Notion. Learn more about Notion's Developer Platform today at https://notion.com/mlstWhy can deep networks discover abstractions that shallow models miss? Statistical physicist Matthieu Wyart joins Tim Scarfe to argue that the answer lies in the hidden hierarchy of data. Language and images are built from parts within parts; depth lets a network recover those coars
How Researchers Test AI for Hidden Goals — Apollo Research
How Researchers Test AI for Hidden Goals — Apollo Research Jul 31, 2026 01:18:59 Can an AI do the right thing for the wrong reason? Tim Scarfe speaks with Apollo Research’s Alexander Meinke, Axel Højmark and Jérémy Scheurer about Measuring Reward-Seeking via Contrastive Belief Updates, their new research with OpenAI.The panel asks how models infer what graders reward, why good behaviour can come from the wrong reason, and whether that difference can be measured. The conversati
Why a Nation Can't Outsource Its Frontier AI - Alistair Pullen (Cosine AI)
Why a Nation Can't Outsource Its Frontier AI - Alistair Pullen (Cosine AI) Jul 13, 2026 00:55:56 This episode is sponsored by Notion. Learn more about Notion's Developer Platform today at https://notion.com/mlstBritain's most capable coding model can't be exported, and that ban is the whole reason Cosine set out to build one from scratch. Alistair Pullen, CEO and co-founder of Cosine, sits down with Tim Scarfe to explain how a frontier system he calls Fable, locked behind US expor
The Benchmark With No Instructions — ARC-AGI-3 (winning team!)
The Benchmark With No Instructions — ARC-AGI-3 (winning team!) Jul 1, 2026 01:24:34 Tim Scarfe travels to Zurich to sit down with the Tufa Labs ARC-AGI-3 team — founder Benjamin Crouzier, with Jeroen Cottaar, Dries Smit, Stefano Viel and Michal Tesnar — to work out what their leaderboard-topping system does and what the benchmark is really testing.The cut opens on the games: a walkthrough of the Locksmith game, where you read the rules of an unfamiliar world straight from raw fra
The Thermodynamic AI Computing Chip - Thomas Ahle
The Thermodynamic AI Computing Chip - Thomas Ahle Jun 28, 2026 01:02:59 Thomas Ahle wants Normal Computing to be the Lovable for chip design: type your intent, and a swarm of agents carries it from design through optimisation, formalisation and verification to tape-out. To get there, his team at wrote their own open-source Verilog simulator, 580,000 lines in 43 days, because commercial EDA verifiers run about $10,000 per core and there are no decent open-source compil

Recommended