Track the word "stack" through a single day of ordinary reading and you will find it doing jobs no word should be asked to do alone. Engineers ship on a tech stack. Founders pitch their AI stack. The wellness feed recommends a morning stack of supplements and a habit stack to take them. Personal-finance posters photograph their stacks. Somewhere along the way the pancake breakfast became a worldview.

The appeal is easy to diagnose. A stack is modular: components chosen, swapped, optimised. To describe your life as a stack is to claim an engineer's relationship to it — nothing inherited, everything selected, every layer replaceable when a better one ships. It is the vocabulary of control, borrowed by people who feel they have little.

What the metaphor quietly deletes is everything unstackable: the friendships that arrived by accident, the tastes you did not choose, the parts of a self that resist versioning. Languages always borrow their metaphors from the reigning technology — we were clockwork once, then steam, then computers. Now we are architectures. It is worth remembering, between optimisations, that the metaphor is the machine's. The life is still yours.