Twelve years of buying stock and I cannot write down the rule. What the research says about why, and what to log instead of interviewing yourself.
Your competitor can build the same stack next week. Four things that do not copy: the learning loop, the customer lock-in, the accountability, and the things nobody wrote down.
Fourteen years capturing demand that already existed. TikTok wants a completely different skill, and AI shopping agents want exactly the discipline Amazon already forced.
AI is not mainly taking over the work. It is taking away the reason you hire people to coordinate other people. Coase, three people running £3M, and why flat is not the same as decentralised.
A £3M product business run by three people. What AI is actually worth in a product company, and it is not a better product description.
Twelve years in the Amazon ecosystem, one container of garden ornaments that should never have been ordered, and where the result actually gets decided.
One £100,000 purchase order, from the deposit to the day the money comes back, and how many units you sell before any of it is yours.