[Peaker]

It's a bit funny, the most unreasonable thing about emacs are its default key bindings...

Some of the most frequent operations, like switching between buffers or windows takes 3 key strokes!

[gnuvince]

Vim doesn't appear to be any better in this regard: switching windows is Ctrl+W Ctrl+W (three strokes) and switching buffers is :bn<CR> (five strokes).

[philsnow]

Many have opined that that's intended to get people to embrace the built-in malleability and augment the default bindings first thing.

[SamReidHughes]

Instead of the usual 2 keystrokes, right?

It can take more keystrokes than that, even, if you have three or more windows.