David Gross comments on Vim

[David Gross]

You can exit insert mode by pressing Escape but it is faster to remap your CapsLock key to Ctrl and then exit insert mode with Ctrl-[.

I don’t get how that’s faster.

[gilch]

You have to reach farther for Escape than for CapsLock, which makes Escape slower.

I mapped fd to Escape, because that’s what Spacemacs uses. It’s also much less error-prone than jj and jk, which seem to be common choices.

[lsusr]

Escape is farther from home row.