In the 1940s, many biologists believed in "vitalism"—a life force that couldn't be explained by physics. Craik argued that explanation is mechanical. If you can build a machine that replicates a phenomenon (like a tide predicting machine or a nervous system), you have explained it.

A: Yes, standard print runs have ended. You can find used copies via AbeBooks or Amazon, but prices vary wildly. The digital route (PDF/borrow) is the most reliable.

, is a foundational text in cognitive science and cybernetics. Published during a tragically brief career that ended with his death at age 31, it proposed a revolutionary view: that the human brain functions as a "calculating machine" capable of modeling external reality to anticipate events. Core Thesis: The Mind as a Small-Scale Model

"My hypothesis then is that thought is a term for the conscious process of manipulating these symbolic representations or models."