About this crazy fast thing... Is it really possible to edit text that fast ? My experience is that I spend quite sometime thinking and just a bit of time typin

About this crazy fast thing... Is it really possible to edit text that fast ? My experience is that I spend quite sometime thinking and just a bit of time typing. So in the end, I just basically use the CUA keys and a few other shortcuts and I've been using emacs like that for 10 years or so. But when I look at some emacs power users on YT, my feeling is that they type fast because they know shortcuts for every single kind of edit they want to make. Is memorizing dozens of shortcuts the way to be crazy fast ? OR is it something else ?