See also Zed Shaw's "Indirection Is Not Abstraction". The blog post is a bit overlong, but Shaw's point is important: Abstraction and indirection are very diff

See also Zed Shaw's "Indirection Is Not Abstraction". The blog post is a bit overlong, but Shaw's point is important: Abstraction and indirection are very different yet cooperating concepts with two completely different purposes in software development. Abstraction is used to reduce complexity. Indirection is used to reduce coupling or dependence. https://zedshaw.com/archive/indirection-is-not-abstraction/ https://zedshaw.com/archive/indirection-is-not-abstraction/