Broad?spectrum conceptual engineering

Conceptual engineering is the method for assessing and improving our representational devices. On its ‘broad-spectrum’ version, it expected to be appropriately applicable any of representation-involving cognitive activities, with major consequences whole life. This paper about theoretical foundations conceptual thus characterised. With a view ensuring actionability as broad-spectrum method, addresses issue how best construe subject matter successively defends theses that should be: (i) About concepts, (ii) psychologically theorised, (iii) multiply realised functional kinds. Thereby, I claim theoretically secure justify maximum scope, flexibility, impact on devices in life—in other words, version engineering.