> and then you select the character you want from a menu of suggestions Notably, anything reasonable that lets the user just keep mashing the keys is gonna be

> and then you select the character you want from a menu of suggestions Notably, anything reasonable that lets the user just keep mashing the keys is gonna be faster than selecting stuff on the screen, assuming the user is experienced with typing. Because seeing a wrong predicted character, then looking at the menu, then—crucially—locating the necessary character and then selecting it will be way slower than punching keys in without interaction. Making choices and, separately, selecting stuff on the screen are both slower than just jerking the fingers from muscle memory. More so if the user is a touch-typist. If you know that your ‘事’ is something like ‘shi down-down-enter’, it would still be faster than the same thing with unfamiliar choices in the menu—or if the prediction and the choices change between invocations. Though this handicap would diminish after the choices settle on the user's typical most-used characters and the user in turn gets used to them.