#DnD magic-users cast a spell & forget it. Folks like to point at this and say that makes D&D's magic Vancian.
This bugs me for many reasons I don't care to enumerate. I encourage you to read some Jack Vance if want to know more. It's all in books.
While this cast and forget quality is a delightful constraint in Vance's fiction, it's an awkward trope in D&D's pastiche. The latter does not feel like the former. So I'd like to humbly propose a new term for D&D's version: Regexian.
Hear me out!