And you can forget them in the next 15 minutes. Been there, done that.
As the article says, if you don't use it regularly you'll never learn it by heart, and Vi doesn't have any affordances that will remind you of what you learned by recognition instead of recall.
As the article says, if you don't use it regularly you'll never learn it by heart, and Vi doesn't have any affordances that will remind you of what you learned by recognition instead of recall.