I call this the Socrates Principle. He rejected writing because he considered it a crutch for memory and just as walking with crutches weakens the legs, so writ

I call this the Socrates Principle. He rejected writing because he considered it a crutch for memory and just as walking with crutches weakens the legs, so writing weakens the memory. The principle generalizes to tools of all sorts. There’s a fundamental tension between the increased capabilities tools offer versus the atrophy of your own abilities that relying on them leads to.