Apple filed a patent for a keyboard that isn’t ruined by dust
 

When Apple unveiled its 2015 MacBook, reviewers quickly discovered its keys were flatter than ever, with single-digit millimeters of travel between their pressed and unpressed states. At first, we heralded this as a miraculous accomplishment in ever-...

https://www.engadget.com/2018/03/09/...uined-by-dust/