But that's what the muscle memory is for. If you only ever used the arrow keys to move around and backspace to delete one character at a time, you won't need an

But that's what the muscle memory is for. If you only ever used the arrow keys to move around and backspace to delete one character at a time, you won't need any special tool for memorizing which key to use! The whole reason this tool exists is because the best text editors (Emacs ;)) do have a ton of different commands. So now you have to learn that when you wand to delete a word in front you use M-d. The "muscle memory" is just associating each of the many discrete keystrokes with an action. So instead of thinking "hmm, I need to delete this word, I'll press M-d" your hands just go to M-d as soon as you realize the word needs to be deleted. This is exactly the sort of memory you need to deal with a high-entropy command stream quickly. The ideal would be to use a ton of different commands without thinking about them at all. Now, I don't think this site is ideal for this sort of learning, but it's a step in the right direction.