Alt (assuming you actually mean Meta ;) is completely unnecessary for emacs. Meta-<Key> can always be produced by pressing ESC <Key>
I guess technically ctrl is also unnecessary since you could type out whole commands with M-x (ESC x command). It wouldn't be fun, but you could do it.
I guess technically ctrl is also unnecessary since you could type out whole commands with M-x (ESC x command). It wouldn't be fun, but you could do it.