A one-day applied quantum and AI show at Big Penny Social in Walthamstow, running three parallel summits - Quantum + AI Compute, Security & Infrastructure, and Industry & Applications - alongside Creative LDN and Labs stages. Doors 08:30, programme through an afterparty from 16:40, close at 19:00.

The speaker list is unusually senior. James Appathurai, NATO's Deputy Assistant Secretary General for Innovation, Hybrid and Cyber; Dr Samantha Francis, Programme Director for AI at UKRI; Dr Stephen Moore, Quantum Science and Technology Strategy Lead at the UK Ministry of Defence; Richard Murray, CEO of Orca Computing; Stuart Seymour, Group CISO at Virgin Media O2; and Marcus du Sautoy of Oxford. Tickets go through Ticket Tailor and no price is published.

Why go: it is the one London room this autumn where quantum procurement, defence and security people share a building with the firms actually building the hardware. Best for infrastructure, security and R&D leads working out what quantum means for their stack.