A product a machine can rebuild in an afternoon may still survive for years. Surviving does not show that it deserves to exist. Seven chapters on products, organisations, roles and ownership, and on who must answer for each.

Priya did her best work on a module already being thrown away. A machine makes you faster at anything, including the wrong thing. Part III is about working beside it: framing, depth, judgement, checking, and change.

The print edition of this book drew a line around what machines could never do. Some of that line has already moved. This chapter tests every “AI cannot” claim, puts a date on each, and finds what stays when the skills are matched.

Nothing is more useful than water, Adam Smith wrote, and nothing buys less. Intelligence is moving from diamond to water. Its price is falling fast. Its usefulness is not. Your wage was tied to the price, and your worth never was.

A machine read an X-ray in four seconds and found what a radiologist had missed. Nobody was fired. Part II asks what the machine is, what it replaces, what it cannot, and how far to believe it, with a date on every claim.