alt Hacker NewsDepends what you're doing I suppose. E.g. if keyboards had a 40% error rate you wouldn't find me trying to write a novel on one... but you'd still find me using it for a lot of things. I.e. we don't choose to use tools solely based on how often they malfunction, rather stuff like how often they save us time over not using them on average.
At 40% failure rate, the keyboard would be useless as a keyboard. What would you use it for?! 40% means the backspace, delete key wouldn't work 40% of the time, and even might hit the enter key instead.
Trying to fix the mistakes, would lead to more mistakes! Which I guess is apt, because that sounds a lot like AI.
You could use the keyboard to prop a door open though.