etn. — the European Technology Network — is Europe's daily live technology show. It broadcasts three hours a day from a studio in King's Cross, London, covering European startups, frontier AI labs and technology policy, and streams free on X and YouTube.

etn. is hosted by its co-founders, Luke Knight and Ronan Chambers, who started the show in October 2025.

etn. is live every weekday, Monday to Friday, from 12:00 to 15:00 UK time, followed by long-form guest interviews.

Where can I watch etn.?

etn. streams live on X and YouTube, and full episodes are published as a podcast on Spotify. Watching is free and requires no subscription.

Who has appeared on etn.?

Guests have included former UK Prime Minister Rishi Sunak, the UK's first AI minister Kanishka Narayan, Sequoia partner George Robson, and founders from Synthesia, Legora and Granola.

etn. raised a $1.6 million seed round announced in July 2026, backed by Powerhouse Capital, Axel Springer SE, a co-founder of LADbible, and angel investors from OpenAI and Google DeepMind.

Kostas Chalkias

1 episode · 1 moment · last on 12 Jun 2026

12 Jun 2026Lovable $500M ARR, Fable 5, UK AI Minister Joins, OpenAI Price Cuts

1:27:208 min

Kostas Chalkias: Mysten Labs & Walrus Memory for AI Agents

Kostas Chalkias, co-founder and chief cryptographer at Mysten Labs, explains leaving Facebook (including the Libra blockchain effort) with four colleagues to build a faster-Ethereum blockchain, and why he now sees cryptography and AI converging as people entrust models with their inner thoughts. He introduces Walrus, Mysten's decentralized data platform, and its new Walrus Memory: a portable, verifiable, encrypted and programmable memory layer for AI agents that works across Claude, Gemini and other APIs with user-defined access policies.