Concepts
Four ideas the essays coin and reuse. Each is defined once here, then linked to the essays that put it to work. The definition is the pointer; the argument that earns it is in the essays.
Part of the corpus map. For the reading paths, see Themes.
The variable one level upstream
The signature move of the corpus: take the variable the room is optimising and isolate the one upstream of it, the state that decides whether any of the visible variables matter at all. Usually that state is a condition, not a number, and reading it before you act is the recurring skill. Named here in its clearest cross-domain instances; it runs under far more of the corpus than this list.
When the operating plan is suspended
The recurring state in which a market or an organisation suspends its own operating rules, so the disciplines that usually govern, returns, valuation, caution, stop being enforced, and yesterday's winning move becomes tomorrow's ruin until the regime turns back. The strategic error inverts with the regime, and the essays argue that misreading which regime you are in, not analytical weakness, is what breaks strategies and portfolios.
The informal-organisation integrator
The leadership archetype whose work is the undrawable one: holding, or rebuilding, the informal organisation of trust and judgment that actually runs a company. It is decisive precisely at the integration discontinuities, a merger, a carve-out, a new leadership, where the formal operating model survives intact and the machine underneath it goes dark. Keeping that machine alive was never anyone's job on the chart, which is why it is lost, and why rebuilding it is the work that matters.
Install-and-exit
The claim that culture and power change wholesale, not by degrees. A culture is a self-defending immune system, so you do not shift it with values and workshops; you install a critical mass, thirty to forty per cent, of new carriers into the rooms where decisions are made, let the old antibodies leave, and change the reporting lines, because anything less is absorbed and neutralised.