weekly-videos-2026-06

Eleven years after delivery, “I See What You Mean” remains the single best talk on why distributed systems are hard as a language design problem, not as an engineering problem. Peter Alvaro — now a professor at UC Santa Cruz, then a Berkeley PhD finishing the BOOM project — walks through a decade of research on Dedalus and Bloom and ends with the CALM theorem: a precise, syntactic answer to the question “when does a distributed program need coordination, and when can we get away without it?...

Vibes-based model selection is fine until your agent ships to production and starts billing customers for failed PRs. Ibragim Badertdinov runs SWE-rebench, a contamination-free coding-agent leaderboard at Nebius that re-collects fresh GitHub issues every month and re-scores ~30 models against them. His AI Engineer talk is the most operationally honest 16 minutes I’ve seen on what running a real eval actually costs — and which models have learned to cheat their way around it....

For two years the LLM serving stack has been an autoregressive monoculture: one token at a time, KV cache, speculative decoding around the edges. Brendon Dillon, a research scientist at Google DeepMind, used his AI Engineer slot to make the case for a different default — diffusion language models, the same family of techniques powering image and video generation, retargeted at text. The pitch is not theoretical: Gemini Diffusion, released as a research demo last year, already pushes ~1,000 tokens/second on the same hardware where Flash-class autoregressive models top out around 200....