[mtmail]

"You can 3x your typing speed if you set up shortcuts for most frequently used words to decrease the number of symbols you have to type. Here’s how it works on Mac OS or iOS."

So a bit a predictive typing assistance and customizations.

"Here are some ideas for reflection shortcuts that I use:

    “wam”—“Why am I feeling this way?”
    “wwl”—“What went well?”
    “wcb”—What could have gone better?"

Like duckduckgo bangs I doubt I would be able to remember more than 10.

[Moru]

If you want to go another level, try a chorded keyboard and stenographic input methods.

https://en.wikipedia.org/wiki/Chorded_keyboard

[MAGZine]

like VIM commands, you can't expect yourself to read the manual and master them all on the first try. You add them as you find yourself frustrated with how inefficient an operation is. I suspect it's going to be something that you slowly add and improve overtime, and, likewise, prune as your vocabulary changes.

[phailhaus]

But unlike vim commands these can't be composed, so the number of shortcuts scales linearly with the number of words/phrases you want to express. I'm not sure how useful this would be for me.