I'd like to read a good article or book about the tension that exists between efficiency and resiliency. At the simplest level, unneeded redundancy is always less efficient, but also more resilient.

https://academic.oup.com/jiel/article/26/2/233/7071723

One case study involves economic coercion.

(Disclosure: I worked with the author, although not on this paper)

Slack is a synonym for redundancy but is also a synonym for inefficiency.