Christian Turner-Bridger

I build AI systems, and show the working – what held, and what did not.

Agent workflows, retrieval and model evaluation, written up as investigations that carry their method and their sources. Built on five years of demand and pricing work. Consulting through Orrery.

September 2026
Applied AI is the centre of the practice now: agent workflows, retrieval over documents a business already holds, and the evaluation harnesses that decide whether either is fit to ship. Most of what goes up here is me working something out in public rather than handing down a settled answer, failures included – a method you only ever see succeed is not one you can judge. If something here is wrong, I would rather be told.
LuxuryNecessityhighlowlowhighHOUSEHOLD INCOMESHARE OF SPEND
Engel curves. A luxury good takes a rising share of spend as income grows; a necessity takes a falling one. From What makes a luxury product?