Person
Tim Scarfe
Why a Nation Can't Outsource Its Frontier AI - Alistair Pullen (Cosine AI)
Alistair Pullen says Cosine is building a UK sovereign frontier model because export controls and compute constraints forced the company to pursue its own stack. He argues the real bottlenecks are inference economics, active parameters, trajectory data, and better RL reward shaping for coding agents.
The Benchmark With No Instructions — ARC-AGI-3 (winning team!)
The episode dissects ARC-AGI-3 as a benchmark for interactive goal inference, action efficiency, and abstraction under tight constraints. The Tufa Labs team explains how its winning system evolved from brute-force search toward language-mediated, harnessed reasoning, while arguing that the benchmark tests performance, not true competence.
He won a Nobel here for AlphaFold. Then he left. - John Jumper
John Jumper explains how AlphaFold turned protein structure prediction from a slow, expensive experimental bottleneck into a fast, highly accurate computational tool, while stressing that it is still a narrow predictor rather than a model of the cell. The episode also covers AlphaFold2’s architecture, AlphaFold3’s move to biomolecular interactions, and how these tools are changing structural biology globally, including in Africa.