Fewer keys and being old aren't arguments against something being convenient and efficient... See for instance the benefit that 22 keys can have with a stenotyp

Fewer keys and being old aren't arguments against something being convenient and efficient... See for instance the benefit that 22 keys can have with a stenotype machine: http://en.wikipedia.org/wiki/Stenotype http://en.wikipedia.org/wiki/Stenotype Should everyone learn to use one? Probably not, but if you're invested already it wouldn't be prudent to ignore the advice of those already familiar with the device. Similarly with vim.